123507968

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 259015680

約数和(自身を除く): 135507712

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 79, 124, 128, 158, 197, 248, 256, 316, 394, 496, 632, 788, 992, 1264, 1576, 1984, 2449, 2528, 3152, 3968, 4898, 5056, 6107, 6304, 7936, 9796, 10112, 12214, 12608, 15563, 19592, 20224, 24428, 25216, 31126, 39184, 48856, 50432, 62252, 78368, 97712, 124504, 156736, 195424, 249008, 313472, 390848, 482453, 498016, 626944, 781696, 964906, 996032, 1563392, 1929812, 1992064, 3859624, 3984128, 7719248, 15438496, 30876992, 61753984, 123507968]

約数ペア:

[(1, 123507968), (2, 61753984), (4, 30876992), (8, 15438496), (16, 7719248), (31, 3984128), (32, 3859624), (62, 1992064), (64, 1929812), (79, 1563392), (124, 996032), (128, 964906), (158, 781696), (197, 626944), (248, 498016), (256, 482453), (316, 390848), (394, 313472), (496, 249008), (632, 195424), (788, 156736), (992, 124504), (1264, 97712), (1576, 78368), (1984, 62252), (2449, 50432), (2528, 48856), (3152, 39184), (3968, 31126), (4898, 25216), (5056, 24428), (6107, 20224), (6304, 19592), (7936, 15563), (9796, 12608), (10112, 12214)]