28103075

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1123}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 46830336

約数和(自身を除く): 18727261

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 143, 175, 275, 325, 385, 455, 715, 1001, 1123, 1925, 2275, 3575, 5005, 5615, 7861, 12353, 14599, 25025, 28075, 39305, 61765, 72995, 86471, 102193, 160589, 196525, 308825, 364975, 432355, 510965, 802945, 1124123, 2161775, 2554825, 4014725, 5620615, 28103075]

約数ペア:

[(1, 28103075), (5, 5620615), (7, 4014725), (11, 2554825), (13, 2161775), (25, 1124123), (35, 802945), (55, 510965), (65, 432355), (77, 364975), (91, 308825), (143, 196525), (175, 160589), (275, 102193), (325, 86471), (385, 72995), (455, 61765), (715, 39305), (1001, 28075), (1123, 25025), (1925, 14599), (2275, 12353), (3575, 7861), (5005, 5615)]