20634592

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 72

約数和(自身を含む): 46543896

約数和(自身を除く): 25909304

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 61, 62, 88, 122, 124, 176, 244, 248, 341, 352, 488, 496, 671, 682, 961, 976, 992, 1342, 1364, 1891, 1922, 1952, 2684, 2728, 3782, 3844, 5368, 5456, 7564, 7688, 10571, 10736, 10912, 15128, 15376, 20801, 21142, 21472, 30256, 30752, 41602, 42284, 58621, 60512, 83204, 84568, 117242, 166408, 169136, 234484, 332816, 338272, 468968, 644831, 665632, 937936, 1289662, 1875872, 2579324, 5158648, 10317296, 20634592]

約数ペア:

[(1, 20634592), (2, 10317296), (4, 5158648), (8, 2579324), (11, 1875872), (16, 1289662), (22, 937936), (31, 665632), (32, 644831), (44, 468968), (61, 338272), (62, 332816), (88, 234484), (122, 169136), (124, 166408), (176, 117242), (244, 84568), (248, 83204), (341, 60512), (352, 58621), (488, 42284), (496, 41602), (671, 30752), (682, 30256), (961, 21472), (976, 21142), (992, 20801), (1342, 15376), (1364, 15128), (1891, 10912), (1922, 10736), (1952, 10571), (2684, 7688), (2728, 7564), (3782, 5456), (3844, 5368)]