90338980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{563}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 194431104

約数和(自身を除く): 104092124

約数列:

[1, 2, 4, 5, 10, 20, 71, 113, 142, 226, 284, 355, 452, 563, 565, 710, 1126, 1130, 1420, 2252, 2260, 2815, 5630, 8023, 11260, 16046, 32092, 39973, 40115, 63619, 79946, 80230, 127238, 159892, 160460, 199865, 254476, 318095, 399730, 636190, 799460, 1272380, 4516949, 9033898, 18067796, 22584745, 45169490, 90338980]

約数ペア:

[(1, 90338980), (2, 45169490), (4, 22584745), (5, 18067796), (10, 9033898), (20, 4516949), (71, 1272380), (113, 799460), (142, 636190), (226, 399730), (284, 318095), (355, 254476), (452, 199865), (563, 160460), (565, 159892), (710, 127238), (1126, 80230), (1130, 79946), (1420, 63619), (2252, 40115), (2260, 39973), (2815, 32092), (5630, 16046), (8023, 11260)]