20780452804

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:557

約数の個数: 96

約数和(自身を含む): 39312725760

約数和(自身を除く): 18532272956

約数列:

[1, 2, 4, 23, 46, 67, 92, 109, 134, 157, 197, 218, 268, 314, 394, 436, 628, 788, 1541, 2507, 3082, 3611, 4531, 5014, 6164, 7222, 7303, 9062, 10028, 10519, 13199, 14444, 14606, 17113, 18124, 21038, 21473, 26398, 29212, 30929, 34226, 42076, 42946, 52796, 61858, 68452, 85892, 123716, 167969, 241937, 303577, 335938, 393599, 483874, 493879, 607154, 671876, 711367, 787198, 967748, 987758, 1146571, 1214308, 1422734, 1438691, 1574396, 1975516, 2072243, 2293142, 2845468, 2877382, 3371261, 4144486, 4586284, 5754764, 6742522, 8288972, 13485044, 26371133, 33089893, 47661589, 52742266, 66179786, 77539003, 95323178, 105484532, 132359572, 155078006, 190646356, 225874487, 310156012, 451748974, 903497948, 5195113201, 10390226402, 20780452804]

約数ペア:

[(1, 20780452804), (2, 10390226402), (4, 5195113201), (23, 903497948), (46, 451748974), (67, 310156012), (92, 225874487), (109, 190646356), (134, 155078006), (157, 132359572), (197, 105484532), (218, 95323178), (268, 77539003), (314, 66179786), (394, 52742266), (436, 47661589), (628, 33089893), (788, 26371133), (1541, 13485044), (2507, 8288972), (3082, 6742522), (3611, 5754764), (4531, 4586284), (5014, 4144486), (6164, 3371261), (7222, 2877382), (7303, 2845468), (9062, 2293142), (10028, 2072243), (10519, 1975516), (13199, 1574396), (14444, 1438691), (14606, 1422734), (17113, 1214308), (18124, 1146571), (21038, 987758), (21473, 967748), (26398, 787198), (29212, 711367), (30929, 671876), (34226, 607154), (42076, 493879), (42946, 483874), (52796, 393599), (61858, 335938), (68452, 303577), (85892, 241937), (123716, 167969)]