259461320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{2521}}^1$

素因数の和:2646

約数の個数: 64

約数和(自身を含む): 610122240

約数和(自身を除く): 350660920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 83, 124, 155, 166, 248, 310, 332, 415, 620, 664, 830, 1240, 1660, 2521, 2573, 3320, 5042, 5146, 10084, 10292, 12605, 12865, 20168, 20584, 25210, 25730, 50420, 51460, 78151, 100840, 102920, 156302, 209243, 312604, 390755, 418486, 625208, 781510, 836972, 1046215, 1563020, 1673944, 2092430, 3126040, 4184860, 6486533, 8369720, 12973066, 25946132, 32432665, 51892264, 64865330, 129730660, 259461320]

約数ペア:

[(1, 259461320), (2, 129730660), (4, 64865330), (5, 51892264), (8, 32432665), (10, 25946132), (20, 12973066), (31, 8369720), (40, 6486533), (62, 4184860), (83, 3126040), (124, 2092430), (155, 1673944), (166, 1563020), (248, 1046215), (310, 836972), (332, 781510), (415, 625208), (620, 418486), (664, 390755), (830, 312604), (1240, 209243), (1660, 156302), (2521, 102920), (2573, 100840), (3320, 78151), (5042, 51460), (5146, 50420), (10084, 25730), (10292, 25210), (12605, 20584), (12865, 20168)]