19700252

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 42542976

約数和(自身を除く): 22842724

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 44, 52, 62, 101, 121, 124, 143, 202, 242, 286, 341, 403, 404, 484, 572, 682, 806, 1111, 1313, 1364, 1573, 1612, 2222, 2626, 3131, 3146, 3751, 4433, 4444, 5252, 6262, 6292, 7502, 8866, 12221, 12524, 14443, 15004, 17732, 24442, 28886, 34441, 40703, 48763, 48884, 57772, 68882, 81406, 97526, 137764, 158873, 162812, 195052, 317746, 378851, 447733, 635492, 757702, 895466, 1515404, 1790932, 4925063, 9850126, 19700252]

約数ペア:

[(1, 19700252), (2, 9850126), (4, 4925063), (11, 1790932), (13, 1515404), (22, 895466), (26, 757702), (31, 635492), (44, 447733), (52, 378851), (62, 317746), (101, 195052), (121, 162812), (124, 158873), (143, 137764), (202, 97526), (242, 81406), (286, 68882), (341, 57772), (403, 48884), (404, 48763), (484, 40703), (572, 34441), (682, 28886), (806, 24442), (1111, 17732), (1313, 15004), (1364, 14443), (1573, 12524), (1612, 12221), (2222, 8866), (2626, 7502), (3131, 6292), (3146, 6262), (3751, 5252), (4433, 4444)]