664755820

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{467}}^1\times {\mathrm{691}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 1414603008

約数和(自身を除く): 749847188

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 467, 515, 691, 934, 1030, 1382, 1868, 2060, 2335, 2764, 3455, 4670, 6910, 9340, 13820, 48101, 71173, 96202, 142346, 192404, 240505, 284692, 322697, 355865, 481010, 645394, 711730, 962020, 1290788, 1423460, 1613485, 3226970, 6453940, 33237791, 66475582, 132951164, 166188955, 332377910, 664755820]

約数ペア:

[(1, 664755820), (2, 332377910), (4, 166188955), (5, 132951164), (10, 66475582), (20, 33237791), (103, 6453940), (206, 3226970), (412, 1613485), (467, 1423460), (515, 1290788), (691, 962020), (934, 711730), (1030, 645394), (1382, 481010), (1868, 355865), (2060, 322697), (2335, 284692), (2764, 240505), (3455, 192404), (4670, 142346), (6910, 96202), (9340, 71173), (13820, 48101)]