1640235978

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{601}}^1$

素因数の和:780

約数の個数: 96

約数和(自身を含む): 3780521472

約数和(自身を除く): 2140285494

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 67, 73, 93, 134, 146, 186, 201, 219, 279, 402, 438, 558, 601, 603, 657, 1202, 1206, 1314, 1803, 2077, 2263, 3606, 4154, 4526, 4891, 5409, 6231, 6789, 9782, 10818, 12462, 13578, 14673, 18631, 18693, 20367, 29346, 37262, 37386, 40267, 40734, 43873, 44019, 55893, 80534, 87746, 88038, 111786, 120801, 131619, 151621, 167679, 241602, 263238, 303242, 335358, 362403, 394857, 454863, 724806, 789714, 909726, 1248277, 1360063, 1364589, 2496554, 2720126, 2729178, 2939491, 3744831, 4080189, 5878982, 7489662, 8160378, 8818473, 11234493, 12240567, 17636946, 22468986, 24481134, 26455419, 52910838, 91124221, 182248442, 273372663, 546745326, 820117989, 1640235978]

約数ペア:

[(1, 1640235978), (2, 820117989), (3, 546745326), (6, 273372663), (9, 182248442), (18, 91124221), (31, 52910838), (62, 26455419), (67, 24481134), (73, 22468986), (93, 17636946), (134, 12240567), (146, 11234493), (186, 8818473), (201, 8160378), (219, 7489662), (279, 5878982), (402, 4080189), (438, 3744831), (558, 2939491), (601, 2729178), (603, 2720126), (657, 2496554), (1202, 1364589), (1206, 1360063), (1314, 1248277), (1803, 909726), (2077, 789714), (2263, 724806), (3606, 454863), (4154, 394857), (4526, 362403), (4891, 335358), (5409, 303242), (6231, 263238), (6789, 241602), (9782, 167679), (10818, 151621), (12462, 131619), (13578, 120801), (14673, 111786), (18631, 88038), (18693, 87746), (20367, 80534), (29346, 55893), (37262, 44019), (37386, 43873), (40267, 40734)]