65868920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:864

約数の個数: 64

約数和(自身を含む): 160665120

約数和(自身を除く): 94796200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 197, 260, 394, 520, 643, 788, 985, 1286, 1576, 1970, 2561, 2572, 3215, 3940, 5122, 5144, 6430, 7880, 8359, 10244, 12805, 12860, 16718, 20488, 25610, 25720, 33436, 41795, 51220, 66872, 83590, 102440, 126671, 167180, 253342, 334360, 506684, 633355, 1013368, 1266710, 1646723, 2533420, 3293446, 5066840, 6586892, 8233615, 13173784, 16467230, 32934460, 65868920]

約数ペア:

[(1, 65868920), (2, 32934460), (4, 16467230), (5, 13173784), (8, 8233615), (10, 6586892), (13, 5066840), (20, 3293446), (26, 2533420), (40, 1646723), (52, 1266710), (65, 1013368), (104, 633355), (130, 506684), (197, 334360), (260, 253342), (394, 167180), (520, 126671), (643, 102440), (788, 83590), (985, 66872), (1286, 51220), (1576, 41795), (1970, 33436), (2561, 25720), (2572, 25610), (3215, 20488), (3940, 16718), (5122, 12860), (5144, 12805), (6430, 10244), (7880, 8359)]