42121720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^2\times {\mathrm{283}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 96693480

約数和(自身を除く): 54571760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 283, 305, 488, 566, 610, 1132, 1220, 1415, 2264, 2440, 2830, 3721, 5660, 7442, 11320, 14884, 17263, 18605, 29768, 34526, 37210, 69052, 74420, 86315, 138104, 148840, 172630, 345260, 690520, 1053043, 2106086, 4212172, 5265215, 8424344, 10530430, 21060860, 42121720]

約数ペア:

[(1, 42121720), (2, 21060860), (4, 10530430), (5, 8424344), (8, 5265215), (10, 4212172), (20, 2106086), (40, 1053043), (61, 690520), (122, 345260), (244, 172630), (283, 148840), (305, 138104), (488, 86315), (566, 74420), (610, 69052), (1132, 37210), (1220, 34526), (1415, 29768), (2264, 18605), (2440, 17263), (2830, 14884), (3721, 11320), (5660, 7442)]