66858320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26959}}^1$

素因数の和:27003

約数の個数: 40

約数和(自身を含む): 160465920

約数和(自身を除く): 93607600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26959, 53918, 107836, 134795, 215672, 269590, 431344, 539180, 835729, 1078360, 1671458, 2156720, 3342916, 4178645, 6685832, 8357290, 13371664, 16714580, 33429160, 66858320]

約数ペア:

[(1, 66858320), (2, 33429160), (4, 16714580), (5, 13371664), (8, 8357290), (10, 6685832), (16, 4178645), (20, 3342916), (31, 2156720), (40, 1671458), (62, 1078360), (80, 835729), (124, 539180), (155, 431344), (248, 269590), (310, 215672), (496, 134795), (620, 107836), (1240, 53918), (2480, 26959)]