398038140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71333}}^1$

素因数の和:71379

約数の個数: 72

約数和(自身を含む): 1246347648

約数和(自身を除く): 848309508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 71333, 142666, 213999, 285332, 356665, 427998, 641997, 713330, 855996, 1069995, 1283994, 1426660, 2139990, 2211323, 2567988, 3209985, 4279980, 4422646, 6419970, 6633969, 8845292, 11056615, 12839940, 13267938, 19901907, 22113230, 26535876, 33169845, 39803814, 44226460, 66339690, 79607628, 99509535, 132679380, 199019070, 398038140]

約数ペア:

[(1, 398038140), (2, 199019070), (3, 132679380), (4, 99509535), (5, 79607628), (6, 66339690), (9, 44226460), (10, 39803814), (12, 33169845), (15, 26535876), (18, 22113230), (20, 19901907), (30, 13267938), (31, 12839940), (36, 11056615), (45, 8845292), (60, 6633969), (62, 6419970), (90, 4422646), (93, 4279980), (124, 3209985), (155, 2567988), (180, 2211323), (186, 2139990), (279, 1426660), (310, 1283994), (372, 1069995), (465, 855996), (558, 713330), (620, 641997), (930, 427998), (1116, 356665), (1395, 285332), (1860, 213999), (2790, 142666), (5580, 71333)]