81557910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{129457}}^1$

素因数の和:129477

約数の個数: 48

約数和(自身を含む): 242345376

約数和(自身を除く): 160787466

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 129457, 258914, 388371, 647285, 776742, 906199, 1165113, 1294570, 1812398, 1941855, 2330226, 2718597, 3883710, 4530995, 5437194, 5825565, 8155791, 9061990, 11651130, 13592985, 16311582, 27185970, 40778955, 81557910]

約数ペア:

[(1, 81557910), (2, 40778955), (3, 27185970), (5, 16311582), (6, 13592985), (7, 11651130), (9, 9061990), (10, 8155791), (14, 5825565), (15, 5437194), (18, 4530995), (21, 3883710), (30, 2718597), (35, 2330226), (42, 1941855), (45, 1812398), (63, 1294570), (70, 1165113), (90, 906199), (105, 776742), (126, 647285), (210, 388371), (315, 258914), (630, 129457)]