20120141840

素因数分解:

$2^4\times 5^1\times {\mathrm{683}}^1\times {\mathrm{368231}}^1$

素因数の和:368927

約数の個数: 40

約数和(自身を含む): 46847947968

約数和(自身を除く): 26727806128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 683, 1366, 2732, 3415, 5464, 6830, 10928, 13660, 27320, 54640, 368231, 736462, 1472924, 1841155, 2945848, 3682310, 5891696, 7364620, 14729240, 29458480, 251501773, 503003546, 1006007092, 1257508865, 2012014184, 2515017730, 4024028368, 5030035460, 10060070920, 20120141840]

約数ペア:

[(1, 20120141840), (2, 10060070920), (4, 5030035460), (5, 4024028368), (8, 2515017730), (10, 2012014184), (16, 1257508865), (20, 1006007092), (40, 503003546), (80, 251501773), (683, 29458480), (1366, 14729240), (2732, 7364620), (3415, 5891696), (5464, 3682310), (6830, 2945848), (10928, 1841155), (13660, 1472924), (27320, 736462), (54640, 368231)]