66144520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{971}}^1$

素因数の和:1126

約数の個数: 64

約数和(自身を含む): 161663040

約数和(自身を除く): 95518520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 260, 262, 520, 524, 655, 971, 1048, 1310, 1703, 1942, 2620, 3406, 3884, 4855, 5240, 6812, 7768, 8515, 9710, 12623, 13624, 17030, 19420, 25246, 34060, 38840, 50492, 63115, 68120, 100984, 126230, 127201, 252460, 254402, 504920, 508804, 636005, 1017608, 1272010, 1653613, 2544020, 3307226, 5088040, 6614452, 8268065, 13228904, 16536130, 33072260, 66144520]

約数ペア:

[(1, 66144520), (2, 33072260), (4, 16536130), (5, 13228904), (8, 8268065), (10, 6614452), (13, 5088040), (20, 3307226), (26, 2544020), (40, 1653613), (52, 1272010), (65, 1017608), (104, 636005), (130, 508804), (131, 504920), (260, 254402), (262, 252460), (520, 127201), (524, 126230), (655, 100984), (971, 68120), (1048, 63115), (1310, 50492), (1703, 38840), (1942, 34060), (2620, 25246), (3406, 19420), (3884, 17030), (4855, 13624), (5240, 12623), (6812, 9710), (7768, 8515)]