84428940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19819}}^1$

素因数の和:19902

約数の個数: 48

約数和(自身を含む): 239742720

約数和(自身を除く): 155313780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 19819, 39638, 59457, 79276, 99095, 118914, 198190, 237828, 297285, 396380, 594570, 1189140, 1407149, 2814298, 4221447, 5628596, 7035745, 8442894, 14071490, 16885788, 21107235, 28142980, 42214470, 84428940]

約数ペア:

[(1, 84428940), (2, 42214470), (3, 28142980), (4, 21107235), (5, 16885788), (6, 14071490), (10, 8442894), (12, 7035745), (15, 5628596), (20, 4221447), (30, 2814298), (60, 1407149), (71, 1189140), (142, 594570), (213, 396380), (284, 297285), (355, 237828), (426, 198190), (710, 118914), (852, 99095), (1065, 79276), (1420, 59457), (2130, 39638), (4260, 19819)]