20121851020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{81353}}^1$

素因数の和:81594

約数の個数: 48

約数和(自身を含む): 43052536800

約数和(自身を除く): 22930685780

約数列:

[1, 2, 4, 5, 10, 20, 83, 149, 166, 298, 332, 415, 596, 745, 830, 1490, 1660, 2980, 12367, 24734, 49468, 61835, 81353, 123670, 162706, 247340, 325412, 406765, 813530, 1627060, 6752299, 12121597, 13504598, 24243194, 27009196, 33761495, 48486388, 60607985, 67522990, 121215970, 135045980, 242431940, 1006092551, 2012185102, 4024370204, 5030462755, 10060925510, 20121851020]

約数ペア:

[(1, 20121851020), (2, 10060925510), (4, 5030462755), (5, 4024370204), (10, 2012185102), (20, 1006092551), (83, 242431940), (149, 135045980), (166, 121215970), (298, 67522990), (332, 60607985), (415, 48486388), (596, 33761495), (745, 27009196), (830, 24243194), (1490, 13504598), (1660, 12121597), (2980, 6752299), (12367, 1627060), (24734, 813530), (49468, 406765), (61835, 325412), (81353, 247340), (123670, 162706)]