161518060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2153}}^1$

素因数の和:2215

約数の個数: 72

約数和(自身を含む): 385031808

約数和(自身を除く): 223513748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 484, 605, 620, 682, 1210, 1364, 1705, 2153, 2420, 3410, 3751, 4306, 6820, 7502, 8612, 10765, 15004, 18755, 21530, 23683, 37510, 43060, 47366, 66743, 75020, 94732, 118415, 133486, 236830, 260513, 266972, 333715, 473660, 521026, 667430, 734173, 1042052, 1302565, 1334860, 1468346, 2605130, 2936692, 3670865, 5210260, 7341730, 8075903, 14683460, 16151806, 32303612, 40379515, 80759030, 161518060]

約数ペア:

[(1, 161518060), (2, 80759030), (4, 40379515), (5, 32303612), (10, 16151806), (11, 14683460), (20, 8075903), (22, 7341730), (31, 5210260), (44, 3670865), (55, 2936692), (62, 2605130), (110, 1468346), (121, 1334860), (124, 1302565), (155, 1042052), (220, 734173), (242, 667430), (310, 521026), (341, 473660), (484, 333715), (605, 266972), (620, 260513), (682, 236830), (1210, 133486), (1364, 118415), (1705, 94732), (2153, 75020), (2420, 66743), (3410, 47366), (3751, 43060), (4306, 37510), (6820, 23683), (7502, 21530), (8612, 18755), (10765, 15004)]