388999440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:618

約数の個数: 240

約数和(自身を含む): 1408610736

約数和(自身を除く): 1019611296

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 61, 68, 72, 80, 85, 90, 102, 120, 122, 136, 144, 153, 170, 180, 183, 204, 240, 244, 255, 272, 305, 306, 340, 360, 366, 408, 488, 510, 521, 549, 610, 612, 680, 720, 732, 765, 816, 915, 976, 1020, 1037, 1042, 1098, 1220, 1224, 1360, 1464, 1530, 1563, 1830, 2040, 2074, 2084, 2196, 2440, 2448, 2605, 2745, 2928, 3060, 3111, 3126, 3660, 4080, 4148, 4168, 4392, 4689, 4880, 5185, 5210, 5490, 6120, 6222, 6252, 7320, 7815, 8296, 8336, 8784, 8857, 9333, 9378, 10370, 10420, 10980, 12240, 12444, 12504, 14640, 15555, 15630, 16592, 17714, 18666, 18756, 20740, 20840, 21960, 23445, 24888, 25008, 26571, 31110, 31260, 31781, 35428, 37332, 37512, 41480, 41680, 43920, 44285, 46665, 46890, 49776, 53142, 62220, 62520, 63562, 70856, 74664, 75024, 79713, 82960, 88570, 93330, 93780, 95343, 106284, 124440, 125040, 127124, 132855, 141712, 149328, 158905, 159426, 177140, 186660, 187560, 190686, 212568, 248880, 254248, 265710, 286029, 317810, 318852, 354280, 373320, 375120, 381372, 398565, 425136, 476715, 508496, 531420, 540277, 572058, 635620, 637704, 708560, 746640, 762744, 797130, 953430, 1062840, 1080554, 1144116, 1271240, 1275408, 1430145, 1525488, 1594260, 1620831, 1906860, 2125680, 2161108, 2288232, 2542480, 2701385, 2860290, 3188520, 3241662, 3813720, 4322216, 4576464, 4862493, 5402770, 5720580, 6377040, 6483324, 7627440, 8104155, 8644432, 9724986, 10805540, 11441160, 12966648, 16208310, 19449972, 21611080, 22882320, 24312465, 25933296, 32416620, 38899944, 43222160, 48624930, 64833240, 77799888, 97249860, 129666480, 194499720, 388999440]

約数ペア:

[(1, 388999440), (2, 194499720), (3, 129666480), (4, 97249860), (5, 77799888), (6, 64833240), (8, 48624930), (9, 43222160), (10, 38899944), (12, 32416620), (15, 25933296), (16, 24312465), (17, 22882320), (18, 21611080), (20, 19449972), (24, 16208310), (30, 12966648), (34, 11441160), (36, 10805540), (40, 9724986), (45, 8644432), (48, 8104155), (51, 7627440), (60, 6483324), (61, 6377040), (68, 5720580), (72, 5402770), (80, 4862493), (85, 4576464), (90, 4322216), (102, 3813720), (120, 3241662), (122, 3188520), (136, 2860290), (144, 2701385), (153, 2542480), (170, 2288232), (180, 2161108), (183, 2125680), (204, 1906860), (240, 1620831), (244, 1594260), (255, 1525488), (272, 1430145), (305, 1275408), (306, 1271240), (340, 1144116), (360, 1080554), (366, 1062840), (408, 953430), (488, 797130), (510, 762744), (521, 746640), (549, 708560), (610, 637704), (612, 635620), (680, 572058), (720, 540277), (732, 531420), (765, 508496), (816, 476715), (915, 425136), (976, 398565), (1020, 381372), (1037, 375120), (1042, 373320), (1098, 354280), (1220, 318852), (1224, 317810), (1360, 286029), (1464, 265710), (1530, 254248), (1563, 248880), (1830, 212568), (2040, 190686), (2074, 187560), (2084, 186660), (2196, 177140), (2440, 159426), (2448, 158905), (2605, 149328), (2745, 141712), (2928, 132855), (3060, 127124), (3111, 125040), (3126, 124440), (3660, 106284), (4080, 95343), (4148, 93780), (4168, 93330), (4392, 88570), (4689, 82960), (4880, 79713), (5185, 75024), (5210, 74664), (5490, 70856), (6120, 63562), (6222, 62520), (6252, 62220), (7320, 53142), (7815, 49776), (8296, 46890), (8336, 46665), (8784, 44285), (8857, 43920), (9333, 41680), (9378, 41480), (10370, 37512), (10420, 37332), (10980, 35428), (12240, 31781), (12444, 31260), (12504, 31110), (14640, 26571), (15555, 25008), (15630, 24888), (16592, 23445), (17714, 21960), (18666, 20840), (18756, 20740)]