19953840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1171}}^1$

素因数の和:1258

約数の個数: 80

約数和(自身を含む): 62781696

約数和(自身を除く): 42827856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1171, 1420, 1704, 2130, 2342, 2840, 3408, 3513, 4260, 4684, 5680, 5855, 7026, 8520, 9368, 11710, 14052, 17040, 17565, 18736, 23420, 28104, 35130, 46840, 56208, 70260, 83141, 93680, 140520, 166282, 249423, 281040, 332564, 415705, 498846, 665128, 831410, 997692, 1247115, 1330256, 1662820, 1995384, 2494230, 3325640, 3990768, 4988460, 6651280, 9976920, 19953840]

約数ペア:

[(1, 19953840), (2, 9976920), (3, 6651280), (4, 4988460), (5, 3990768), (6, 3325640), (8, 2494230), (10, 1995384), (12, 1662820), (15, 1330256), (16, 1247115), (20, 997692), (24, 831410), (30, 665128), (40, 498846), (48, 415705), (60, 332564), (71, 281040), (80, 249423), (120, 166282), (142, 140520), (213, 93680), (240, 83141), (284, 70260), (355, 56208), (426, 46840), (568, 35130), (710, 28104), (852, 23420), (1065, 18736), (1136, 17565), (1171, 17040), (1420, 14052), (1704, 11710), (2130, 9368), (2342, 8520), (2840, 7026), (3408, 5855), (3513, 5680), (4260, 4684)]