87889480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4421}}^1$

素因数の和:4510

約数の個数: 64

約数和(自身を含む): 229236480

約数和(自身を除く): 141347000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4421, 4970, 8842, 9940, 17684, 19880, 22105, 30947, 35368, 44210, 61894, 88420, 123788, 154735, 176840, 247576, 309470, 313891, 618940, 627782, 1237880, 1255564, 1569455, 2197237, 2511128, 3138910, 4394474, 6277820, 8788948, 10986185, 12555640, 17577896, 21972370, 43944740, 87889480]

約数ペア:

[(1, 87889480), (2, 43944740), (4, 21972370), (5, 17577896), (7, 12555640), (8, 10986185), (10, 8788948), (14, 6277820), (20, 4394474), (28, 3138910), (35, 2511128), (40, 2197237), (56, 1569455), (70, 1255564), (71, 1237880), (140, 627782), (142, 618940), (280, 313891), (284, 309470), (355, 247576), (497, 176840), (568, 154735), (710, 123788), (994, 88420), (1420, 61894), (1988, 44210), (2485, 35368), (2840, 30947), (3976, 22105), (4421, 19880), (4970, 17684), (8842, 9940)]