81899550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:275

約数の個数: 144

約数和(自身を含む): 236422368

約数和(自身を除く): 154522818

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 25, 30, 41, 45, 46, 50, 69, 75, 82, 90, 115, 123, 138, 150, 193, 205, 207, 225, 230, 246, 345, 369, 386, 410, 414, 450, 575, 579, 615, 690, 738, 943, 965, 1025, 1035, 1150, 1158, 1230, 1725, 1737, 1845, 1886, 1930, 2050, 2070, 2829, 2895, 3075, 3450, 3474, 3690, 4439, 4715, 4825, 5175, 5658, 5790, 6150, 7913, 8487, 8685, 8878, 9225, 9430, 9650, 10350, 13317, 14145, 14475, 15826, 16974, 17370, 18450, 22195, 23575, 23739, 26634, 28290, 28950, 39565, 39951, 42435, 43425, 44390, 47150, 47478, 66585, 70725, 71217, 79130, 79902, 84870, 86850, 110975, 118695, 133170, 141450, 142434, 181999, 197825, 199755, 212175, 221950, 237390, 332925, 356085, 363998, 395650, 399510, 424350, 545997, 593475, 665850, 712170, 909995, 998775, 1091994, 1186950, 1637991, 1780425, 1819990, 1997550, 2729985, 3275982, 3560850, 4549975, 5459970, 8189955, 9099950, 13649925, 16379910, 27299850, 40949775, 81899550]

約数ペア:

[(1, 81899550), (2, 40949775), (3, 27299850), (5, 16379910), (6, 13649925), (9, 9099950), (10, 8189955), (15, 5459970), (18, 4549975), (23, 3560850), (25, 3275982), (30, 2729985), (41, 1997550), (45, 1819990), (46, 1780425), (50, 1637991), (69, 1186950), (75, 1091994), (82, 998775), (90, 909995), (115, 712170), (123, 665850), (138, 593475), (150, 545997), (193, 424350), (205, 399510), (207, 395650), (225, 363998), (230, 356085), (246, 332925), (345, 237390), (369, 221950), (386, 212175), (410, 199755), (414, 197825), (450, 181999), (575, 142434), (579, 141450), (615, 133170), (690, 118695), (738, 110975), (943, 86850), (965, 84870), (1025, 79902), (1035, 79130), (1150, 71217), (1158, 70725), (1230, 66585), (1725, 47478), (1737, 47150), (1845, 44390), (1886, 43425), (1930, 42435), (2050, 39951), (2070, 39565), (2829, 28950), (2895, 28290), (3075, 26634), (3450, 23739), (3474, 23575), (3690, 22195), (4439, 18450), (4715, 17370), (4825, 16974), (5175, 15826), (5658, 14475), (5790, 14145), (6150, 13317), (7913, 10350), (8487, 9650), (8685, 9430), (8878, 9225)]