128917920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{641}}^1$

素因数の和:1078

約数の個数: 96

約数和(自身を含む): 407695680

約数和(自身を除く): 278777760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 419, 480, 641, 838, 1257, 1282, 1676, 1923, 2095, 2514, 2564, 3205, 3352, 3846, 4190, 5028, 5128, 6285, 6410, 6704, 7692, 8380, 9615, 10056, 10256, 12570, 12820, 13408, 15384, 16760, 19230, 20112, 20512, 25140, 25640, 30768, 33520, 38460, 40224, 50280, 51280, 61536, 67040, 76920, 100560, 102560, 153840, 201120, 268579, 307680, 537158, 805737, 1074316, 1342895, 1611474, 2148632, 2685790, 3222948, 4028685, 4297264, 5371580, 6445896, 8057370, 8594528, 10743160, 12891792, 16114740, 21486320, 25783584, 32229480, 42972640, 64458960, 128917920]

約数ペア:

[(1, 128917920), (2, 64458960), (3, 42972640), (4, 32229480), (5, 25783584), (6, 21486320), (8, 16114740), (10, 12891792), (12, 10743160), (15, 8594528), (16, 8057370), (20, 6445896), (24, 5371580), (30, 4297264), (32, 4028685), (40, 3222948), (48, 2685790), (60, 2148632), (80, 1611474), (96, 1342895), (120, 1074316), (160, 805737), (240, 537158), (419, 307680), (480, 268579), (641, 201120), (838, 153840), (1257, 102560), (1282, 100560), (1676, 76920), (1923, 67040), (2095, 61536), (2514, 51280), (2564, 50280), (3205, 40224), (3352, 38460), (3846, 33520), (4190, 30768), (5028, 25640), (5128, 25140), (6285, 20512), (6410, 20112), (6704, 19230), (7692, 16760), (8380, 15384), (9615, 13408), (10056, 12820), (10256, 12570)]