313037920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^2$

素因数の和:225

約数の個数: 144

約数和(自身を含む): 847884240

約数和(自身を除く): 534846320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 89, 95, 104, 130, 152, 160, 178, 190, 208, 247, 260, 304, 356, 380, 416, 445, 494, 520, 608, 712, 760, 890, 988, 1040, 1157, 1235, 1424, 1520, 1691, 1780, 1976, 2080, 2314, 2470, 2848, 3040, 3382, 3560, 3952, 4628, 4940, 5785, 6764, 7120, 7904, 7921, 8455, 9256, 9880, 11570, 13528, 14240, 15842, 16910, 18512, 19760, 21983, 23140, 27056, 31684, 33820, 37024, 39520, 39605, 43966, 46280, 54112, 63368, 67640, 79210, 87932, 92560, 102973, 109915, 126736, 135280, 150499, 158420, 175864, 185120, 205946, 219830, 253472, 270560, 300998, 316840, 351728, 411892, 439660, 514865, 601996, 633680, 703456, 752495, 823784, 879320, 1029730, 1203992, 1267360, 1504990, 1647568, 1758640, 1956487, 2059460, 2407984, 3009980, 3295136, 3517280, 3912974, 4118920, 4815968, 6019960, 7825948, 8237840, 9782435, 12039920, 15651896, 16475680, 19564870, 24079840, 31303792, 39129740, 62607584, 78259480, 156518960, 313037920]

約数ペア:

[(1, 313037920), (2, 156518960), (4, 78259480), (5, 62607584), (8, 39129740), (10, 31303792), (13, 24079840), (16, 19564870), (19, 16475680), (20, 15651896), (26, 12039920), (32, 9782435), (38, 8237840), (40, 7825948), (52, 6019960), (65, 4815968), (76, 4118920), (80, 3912974), (89, 3517280), (95, 3295136), (104, 3009980), (130, 2407984), (152, 2059460), (160, 1956487), (178, 1758640), (190, 1647568), (208, 1504990), (247, 1267360), (260, 1203992), (304, 1029730), (356, 879320), (380, 823784), (416, 752495), (445, 703456), (494, 633680), (520, 601996), (608, 514865), (712, 439660), (760, 411892), (890, 351728), (988, 316840), (1040, 300998), (1157, 270560), (1235, 253472), (1424, 219830), (1520, 205946), (1691, 185120), (1780, 175864), (1976, 158420), (2080, 150499), (2314, 135280), (2470, 126736), (2848, 109915), (3040, 102973), (3382, 92560), (3560, 87932), (3952, 79210), (4628, 67640), (4940, 63368), (5785, 54112), (6764, 46280), (7120, 43966), (7904, 39605), (7921, 39520), (8455, 37024), (9256, 33820), (9880, 31684), (11570, 27056), (13528, 23140), (14240, 21983), (15842, 19760), (16910, 18512)]