20239440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{499}}^1$

素因数の和:541

約数の個数: 120

約数和(自身を含む): 68076000

約数和(自身を除く): 47836560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 169, 195, 208, 240, 260, 312, 338, 390, 499, 507, 520, 624, 676, 780, 845, 998, 1014, 1040, 1352, 1497, 1560, 1690, 1996, 2028, 2495, 2535, 2704, 2994, 3120, 3380, 3992, 4056, 4990, 5070, 5988, 6487, 6760, 7485, 7984, 8112, 9980, 10140, 11976, 12974, 13520, 14970, 19461, 19960, 20280, 23952, 25948, 29940, 32435, 38922, 39920, 40560, 51896, 59880, 64870, 77844, 84331, 97305, 103792, 119760, 129740, 155688, 168662, 194610, 252993, 259480, 311376, 337324, 389220, 421655, 505986, 518960, 674648, 778440, 843310, 1011972, 1264965, 1349296, 1556880, 1686620, 2023944, 2529930, 3373240, 4047888, 5059860, 6746480, 10119720, 20239440]

約数ペア:

[(1, 20239440), (2, 10119720), (3, 6746480), (4, 5059860), (5, 4047888), (6, 3373240), (8, 2529930), (10, 2023944), (12, 1686620), (13, 1556880), (15, 1349296), (16, 1264965), (20, 1011972), (24, 843310), (26, 778440), (30, 674648), (39, 518960), (40, 505986), (48, 421655), (52, 389220), (60, 337324), (65, 311376), (78, 259480), (80, 252993), (104, 194610), (120, 168662), (130, 155688), (156, 129740), (169, 119760), (195, 103792), (208, 97305), (240, 84331), (260, 77844), (312, 64870), (338, 59880), (390, 51896), (499, 40560), (507, 39920), (520, 38922), (624, 32435), (676, 29940), (780, 25948), (845, 23952), (998, 20280), (1014, 19960), (1040, 19461), (1352, 14970), (1497, 13520), (1560, 12974), (1690, 11976), (1996, 10140), (2028, 9980), (2495, 8112), (2535, 7984), (2704, 7485), (2994, 6760), (3120, 6487), (3380, 5988), (3992, 5070), (4056, 4990)]