72988531

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 100433088

約数和(自身を除く): 27444557

約数列:

[1, 7, 11, 17, 37, 77, 119, 121, 137, 187, 259, 407, 629, 847, 959, 1309, 1507, 2057, 2329, 2849, 4403, 4477, 5069, 6919, 10549, 14399, 16303, 16577, 25619, 31339, 35483, 48433, 55759, 76109, 86173, 116039, 179333, 281809, 390313, 532763, 603211, 613349, 947903, 1972663, 4293443, 6635321, 10426933, 72988531]

約数ペア:

[(1, 72988531), (7, 10426933), (11, 6635321), (17, 4293443), (37, 1972663), (77, 947903), (119, 613349), (121, 603211), (137, 532763), (187, 390313), (259, 281809), (407, 179333), (629, 116039), (847, 86173), (959, 76109), (1309, 55759), (1507, 48433), (2057, 35483), (2329, 31339), (2849, 25619), (4403, 16577), (4477, 16303), (5069, 14399), (6919, 10549)]