221489048

素因数分解:

$2^3\times {\mathrm{11}}^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 80

約数和(自身を含む): 479284800

約数和(自身を除く): 257795752

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 61, 62, 88, 121, 122, 124, 242, 244, 248, 341, 484, 488, 671, 682, 968, 1331, 1342, 1364, 1891, 2662, 2684, 2728, 3751, 3782, 5324, 5368, 7381, 7502, 7564, 10648, 14641, 14762, 15004, 15128, 20801, 29282, 29524, 30008, 41261, 41602, 58564, 59048, 81191, 82522, 83204, 117128, 162382, 165044, 166408, 228811, 324764, 330088, 453871, 457622, 649528, 893101, 907742, 915244, 1786202, 1815484, 1830488, 2516921, 3572404, 3630968, 5033842, 7144808, 10067684, 20135368, 27686131, 55372262, 110744524, 221489048]

約数ペア:

[(1, 221489048), (2, 110744524), (4, 55372262), (8, 27686131), (11, 20135368), (22, 10067684), (31, 7144808), (44, 5033842), (61, 3630968), (62, 3572404), (88, 2516921), (121, 1830488), (122, 1815484), (124, 1786202), (242, 915244), (244, 907742), (248, 893101), (341, 649528), (484, 457622), (488, 453871), (671, 330088), (682, 324764), (968, 228811), (1331, 166408), (1342, 165044), (1364, 162382), (1891, 117128), (2662, 83204), (2684, 82522), (2728, 81191), (3751, 59048), (3782, 58564), (5324, 41602), (5368, 41261), (7381, 30008), (7502, 29524), (7564, 29282), (10648, 20801), (14641, 15128), (14762, 15004)]