128972880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:334

約数の個数: 240

約数和(自身を含む): 471626064

約数和(自身を除く): 342653184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 41, 45, 48, 51, 60, 68, 72, 80, 82, 85, 90, 102, 120, 123, 136, 144, 153, 164, 170, 180, 204, 205, 240, 246, 255, 257, 272, 306, 328, 340, 360, 369, 408, 410, 492, 510, 514, 612, 615, 656, 680, 697, 720, 738, 765, 771, 816, 820, 984, 1020, 1028, 1224, 1230, 1285, 1360, 1394, 1476, 1530, 1542, 1640, 1845, 1968, 2040, 2056, 2091, 2313, 2448, 2460, 2570, 2788, 2952, 3060, 3084, 3280, 3485, 3690, 3855, 4080, 4112, 4182, 4369, 4626, 4920, 5140, 5576, 5904, 6120, 6168, 6273, 6970, 7380, 7710, 8364, 8738, 9252, 9840, 10280, 10455, 10537, 11152, 11565, 12240, 12336, 12546, 13107, 13940, 14760, 15420, 16728, 17476, 18504, 20560, 20910, 21074, 21845, 23130, 25092, 26214, 27880, 29520, 30840, 31365, 31611, 33456, 34952, 37008, 39321, 41820, 42148, 43690, 46260, 50184, 52428, 52685, 55760, 61680, 62730, 63222, 65535, 69904, 78642, 83640, 84296, 87380, 92520, 94833, 100368, 104856, 105370, 125460, 126444, 131070, 157284, 158055, 167280, 168592, 174760, 179129, 185040, 189666, 196605, 209712, 210740, 250920, 252888, 262140, 314568, 316110, 349520, 358258, 379332, 393210, 421480, 474165, 501840, 505776, 524280, 537387, 629136, 632220, 716516, 758664, 786420, 842960, 895645, 948330, 1048560, 1074774, 1264440, 1433032, 1517328, 1572840, 1612161, 1791290, 1896660, 2149548, 2528880, 2686935, 2866064, 3145680, 3224322, 3582580, 3793320, 4299096, 5373870, 6448644, 7165160, 7586640, 8060805, 8598192, 10747740, 12897288, 14330320, 16121610, 21495480, 25794576, 32243220, 42990960, 64486440, 128972880]

約数ペア:

[(1, 128972880), (2, 64486440), (3, 42990960), (4, 32243220), (5, 25794576), (6, 21495480), (8, 16121610), (9, 14330320), (10, 12897288), (12, 10747740), (15, 8598192), (16, 8060805), (17, 7586640), (18, 7165160), (20, 6448644), (24, 5373870), (30, 4299096), (34, 3793320), (36, 3582580), (40, 3224322), (41, 3145680), (45, 2866064), (48, 2686935), (51, 2528880), (60, 2149548), (68, 1896660), (72, 1791290), (80, 1612161), (82, 1572840), (85, 1517328), (90, 1433032), (102, 1264440), (120, 1074774), (123, 1048560), (136, 948330), (144, 895645), (153, 842960), (164, 786420), (170, 758664), (180, 716516), (204, 632220), (205, 629136), (240, 537387), (246, 524280), (255, 505776), (257, 501840), (272, 474165), (306, 421480), (328, 393210), (340, 379332), (360, 358258), (369, 349520), (408, 316110), (410, 314568), (492, 262140), (510, 252888), (514, 250920), (612, 210740), (615, 209712), (656, 196605), (680, 189666), (697, 185040), (720, 179129), (738, 174760), (765, 168592), (771, 167280), (816, 158055), (820, 157284), (984, 131070), (1020, 126444), (1028, 125460), (1224, 105370), (1230, 104856), (1285, 100368), (1360, 94833), (1394, 92520), (1476, 87380), (1530, 84296), (1542, 83640), (1640, 78642), (1845, 69904), (1968, 65535), (2040, 63222), (2056, 62730), (2091, 61680), (2313, 55760), (2448, 52685), (2460, 52428), (2570, 50184), (2788, 46260), (2952, 43690), (3060, 42148), (3084, 41820), (3280, 39321), (3485, 37008), (3690, 34952), (3855, 33456), (4080, 31611), (4112, 31365), (4182, 30840), (4369, 29520), (4626, 27880), (4920, 26214), (5140, 25092), (5576, 23130), (5904, 21845), (6120, 21074), (6168, 20910), (6273, 20560), (6970, 18504), (7380, 17476), (7710, 16728), (8364, 15420), (8738, 14760), (9252, 13940), (9840, 13107), (10280, 12546), (10455, 12336), (10537, 12240), (11152, 11565)]