640348896

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{631}}^1$

素因数の和:717

約数の個数: 144

約数和(自身を含む): 1897789824

約数和(自身を除く): 1257440928

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 31, 32, 33, 44, 48, 62, 66, 88, 93, 96, 124, 132, 176, 186, 248, 264, 341, 352, 372, 496, 528, 631, 682, 744, 961, 992, 1023, 1056, 1262, 1364, 1488, 1893, 1922, 2046, 2524, 2728, 2883, 2976, 3786, 3844, 4092, 5048, 5456, 5766, 6941, 7572, 7688, 8184, 10096, 10571, 10912, 11532, 13882, 15144, 15376, 16368, 19561, 20192, 20823, 21142, 23064, 27764, 30288, 30752, 31713, 32736, 39122, 41646, 42284, 46128, 55528, 58683, 60576, 63426, 78244, 83292, 84568, 92256, 111056, 117366, 126852, 156488, 166584, 169136, 215171, 222112, 234732, 253704, 312976, 333168, 338272, 430342, 469464, 507408, 606391, 625952, 645513, 666336, 860684, 938928, 1014816, 1212782, 1291026, 1721368, 1819173, 1877856, 2425564, 2582052, 3442736, 3638346, 4851128, 5164104, 6670301, 6885472, 7276692, 9702256, 10328208, 13340602, 14553384, 19404512, 20010903, 20656416, 26681204, 29106768, 40021806, 53362408, 58213536, 80043612, 106724816, 160087224, 213449632, 320174448, 640348896]

約数ペア:

[(1, 640348896), (2, 320174448), (3, 213449632), (4, 160087224), (6, 106724816), (8, 80043612), (11, 58213536), (12, 53362408), (16, 40021806), (22, 29106768), (24, 26681204), (31, 20656416), (32, 20010903), (33, 19404512), (44, 14553384), (48, 13340602), (62, 10328208), (66, 9702256), (88, 7276692), (93, 6885472), (96, 6670301), (124, 5164104), (132, 4851128), (176, 3638346), (186, 3442736), (248, 2582052), (264, 2425564), (341, 1877856), (352, 1819173), (372, 1721368), (496, 1291026), (528, 1212782), (631, 1014816), (682, 938928), (744, 860684), (961, 666336), (992, 645513), (1023, 625952), (1056, 606391), (1262, 507408), (1364, 469464), (1488, 430342), (1893, 338272), (1922, 333168), (2046, 312976), (2524, 253704), (2728, 234732), (2883, 222112), (2976, 215171), (3786, 169136), (3844, 166584), (4092, 156488), (5048, 126852), (5456, 117366), (5766, 111056), (6941, 92256), (7572, 84568), (7688, 83292), (8184, 78244), (10096, 63426), (10571, 60576), (10912, 58683), (11532, 55528), (13882, 46128), (15144, 42284), (15376, 41646), (16368, 39122), (19561, 32736), (20192, 31713), (20823, 30752), (21142, 30288), (23064, 27764)]