80222900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{11299}}^1$

素因数の和:11384

約数の個数: 36

約数和(自身を含む): 176551200

約数和(自身を除く): 96328300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 7100, 11299, 22598, 45196, 56495, 112990, 225980, 282475, 564950, 802229, 1129900, 1604458, 3208916, 4011145, 8022290, 16044580, 20055725, 40111450, 80222900]

約数ペア:

[(1, 80222900), (2, 40111450), (4, 20055725), (5, 16044580), (10, 8022290), (20, 4011145), (25, 3208916), (50, 1604458), (71, 1129900), (100, 802229), (142, 564950), (284, 282475), (355, 225980), (710, 112990), (1420, 56495), (1775, 45196), (3550, 22598), (7100, 11299)]