638234928

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{487}}^1$

素因数の和:999

約数の個数: 120

約数和(自身を含む): 1887974400

約数和(自身を除く): 1249739472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 456, 479, 487, 684, 912, 958, 974, 1368, 1437, 1461, 1916, 1948, 2736, 2874, 2922, 3832, 3896, 4311, 4383, 5748, 5844, 7664, 7792, 8622, 8766, 9101, 9253, 11496, 11688, 17244, 17532, 18202, 18506, 22992, 23376, 27303, 27759, 34488, 35064, 36404, 37012, 54606, 55518, 68976, 70128, 72808, 74024, 81909, 83277, 109212, 111036, 145616, 148048, 163818, 166554, 218424, 222072, 233273, 327636, 333108, 436848, 444144, 466546, 655272, 666216, 699819, 933092, 1310544, 1332432, 1399638, 1866184, 2099457, 2799276, 3732368, 4198914, 4432187, 5598552, 8397828, 8864374, 11197104, 13296561, 16795656, 17728748, 26593122, 33591312, 35457496, 39889683, 53186244, 70914992, 79779366, 106372488, 159558732, 212744976, 319117464, 638234928]

約数ペア:

[(1, 638234928), (2, 319117464), (3, 212744976), (4, 159558732), (6, 106372488), (8, 79779366), (9, 70914992), (12, 53186244), (16, 39889683), (18, 35457496), (19, 33591312), (24, 26593122), (36, 17728748), (38, 16795656), (48, 13296561), (57, 11197104), (72, 8864374), (76, 8397828), (114, 5598552), (144, 4432187), (152, 4198914), (171, 3732368), (228, 2799276), (304, 2099457), (342, 1866184), (456, 1399638), (479, 1332432), (487, 1310544), (684, 933092), (912, 699819), (958, 666216), (974, 655272), (1368, 466546), (1437, 444144), (1461, 436848), (1916, 333108), (1948, 327636), (2736, 233273), (2874, 222072), (2922, 218424), (3832, 166554), (3896, 163818), (4311, 148048), (4383, 145616), (5748, 111036), (5844, 109212), (7664, 83277), (7792, 81909), (8622, 74024), (8766, 72808), (9101, 70128), (9253, 68976), (11496, 55518), (11688, 54606), (17244, 37012), (17532, 36404), (18202, 35064), (18506, 34488), (22992, 27759), (23376, 27303)]