18039720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:307

約数の個数: 128

約数和(自身を含む): 59097600

約数和(自身を除く): 41057880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 37, 40, 51, 60, 68, 74, 85, 102, 111, 120, 136, 148, 170, 185, 204, 222, 239, 255, 296, 340, 370, 408, 444, 478, 510, 555, 629, 680, 717, 740, 888, 956, 1020, 1110, 1195, 1258, 1434, 1480, 1887, 1912, 2040, 2220, 2390, 2516, 2868, 3145, 3585, 3774, 4063, 4440, 4780, 5032, 5736, 6290, 7170, 7548, 8126, 8843, 9435, 9560, 12189, 12580, 14340, 15096, 16252, 17686, 18870, 20315, 24378, 25160, 26529, 28680, 32504, 35372, 37740, 40630, 44215, 48756, 53058, 60945, 70744, 75480, 81260, 88430, 97512, 106116, 121890, 132645, 150331, 162520, 176860, 212232, 243780, 265290, 300662, 353720, 450993, 487560, 530580, 601324, 751655, 901986, 1061160, 1202648, 1503310, 1803972, 2254965, 3006620, 3607944, 4509930, 6013240, 9019860, 18039720]

約数ペア:

[(1, 18039720), (2, 9019860), (3, 6013240), (4, 4509930), (5, 3607944), (6, 3006620), (8, 2254965), (10, 1803972), (12, 1503310), (15, 1202648), (17, 1061160), (20, 901986), (24, 751655), (30, 601324), (34, 530580), (37, 487560), (40, 450993), (51, 353720), (60, 300662), (68, 265290), (74, 243780), (85, 212232), (102, 176860), (111, 162520), (120, 150331), (136, 132645), (148, 121890), (170, 106116), (185, 97512), (204, 88430), (222, 81260), (239, 75480), (255, 70744), (296, 60945), (340, 53058), (370, 48756), (408, 44215), (444, 40630), (478, 37740), (510, 35372), (555, 32504), (629, 28680), (680, 26529), (717, 25160), (740, 24378), (888, 20315), (956, 18870), (1020, 17686), (1110, 16252), (1195, 15096), (1258, 14340), (1434, 12580), (1480, 12189), (1887, 9560), (1912, 9435), (2040, 8843), (2220, 8126), (2390, 7548), (2516, 7170), (2868, 6290), (3145, 5736), (3585, 5032), (3774, 4780), (4063, 4440)]