551279560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:455

約数の個数: 128

約数和(自身を含む): 1397088000

約数和(自身を除く): 845808440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 139, 145, 232, 260, 263, 278, 290, 377, 520, 526, 556, 580, 695, 754, 1052, 1112, 1160, 1315, 1390, 1508, 1807, 1885, 2104, 2630, 2780, 3016, 3419, 3614, 3770, 4031, 5260, 5560, 6838, 7228, 7540, 7627, 8062, 9035, 10520, 13676, 14456, 15080, 15254, 16124, 17095, 18070, 20155, 27352, 30508, 32248, 34190, 36140, 36557, 38135, 40310, 52403, 61016, 68380, 72280, 73114, 76270, 80620, 99151, 104806, 136760, 146228, 152540, 161240, 182785, 198302, 209612, 262015, 292456, 305080, 365570, 396604, 419224, 475241, 495755, 524030, 731140, 793208, 950482, 991510, 1048060, 1060153, 1462280, 1900964, 1983020, 2096120, 2120306, 2376205, 3801928, 3966040, 4240612, 4752410, 5300765, 8481224, 9504820, 10601530, 13781989, 19009640, 21203060, 27563978, 42406120, 55127956, 68909945, 110255912, 137819890, 275639780, 551279560]

約数ペア:

[(1, 551279560), (2, 275639780), (4, 137819890), (5, 110255912), (8, 68909945), (10, 55127956), (13, 42406120), (20, 27563978), (26, 21203060), (29, 19009640), (40, 13781989), (52, 10601530), (58, 9504820), (65, 8481224), (104, 5300765), (116, 4752410), (130, 4240612), (139, 3966040), (145, 3801928), (232, 2376205), (260, 2120306), (263, 2096120), (278, 1983020), (290, 1900964), (377, 1462280), (520, 1060153), (526, 1048060), (556, 991510), (580, 950482), (695, 793208), (754, 731140), (1052, 524030), (1112, 495755), (1160, 475241), (1315, 419224), (1390, 396604), (1508, 365570), (1807, 305080), (1885, 292456), (2104, 262015), (2630, 209612), (2780, 198302), (3016, 182785), (3419, 161240), (3614, 152540), (3770, 146228), (4031, 136760), (5260, 104806), (5560, 99151), (6838, 80620), (7228, 76270), (7540, 73114), (7627, 72280), (8062, 68380), (9035, 61016), (10520, 52403), (13676, 40310), (14456, 38135), (15080, 36557), (15254, 36140), (16124, 34190), (17095, 32248), (18070, 30508), (20155, 27352)]