72271640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{258113}}^1$

素因数の和:258131

約数の個数: 32

約数和(自身を含む): 185842080

約数和(自身を除く): 113570440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 258113, 516226, 1032452, 1290565, 1806791, 2064904, 2581130, 3613582, 5162260, 7227164, 9033955, 10324520, 14454328, 18067910, 36135820, 72271640]

約数ペア:

[(1, 72271640), (2, 36135820), (4, 18067910), (5, 14454328), (7, 10324520), (8, 9033955), (10, 7227164), (14, 5162260), (20, 3613582), (28, 2581130), (35, 2064904), (40, 1806791), (56, 1290565), (70, 1032452), (140, 516226), (280, 258113)]