399137648

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:335

約数の個数: 160

約数和(自身を含む): 1013268480

約数和(自身を除く): 614130832

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 37, 52, 56, 62, 74, 91, 104, 112, 124, 148, 182, 208, 217, 239, 248, 259, 296, 364, 403, 434, 478, 481, 496, 518, 592, 728, 806, 868, 956, 962, 1036, 1147, 1456, 1612, 1673, 1736, 1912, 1924, 2072, 2294, 2821, 3107, 3224, 3346, 3367, 3472, 3824, 3848, 4144, 4588, 5642, 6214, 6448, 6692, 6734, 7409, 7696, 8029, 8843, 9176, 11284, 12428, 13384, 13468, 14818, 14911, 16058, 17686, 18352, 21749, 22568, 24856, 26768, 26936, 29636, 29822, 32116, 35372, 43498, 45136, 49712, 51863, 53872, 59272, 59644, 61901, 64232, 70744, 86996, 96317, 103726, 104377, 114959, 118544, 119288, 123802, 128464, 141488, 173992, 192634, 207452, 208754, 229918, 238576, 247604, 274133, 347984, 385268, 414904, 417508, 459836, 495208, 548266, 674219, 770536, 804713, 829808, 835016, 919672, 990416, 1096532, 1348438, 1541072, 1609426, 1670032, 1839344, 1918931, 2193064, 2696876, 3218852, 3563729, 3837862, 4386128, 5393752, 6437704, 7127458, 7675724, 10787504, 12875408, 14254916, 15351448, 24946103, 28509832, 30702896, 49892206, 57019664, 99784412, 199568824, 399137648]

約数ペア:

[(1, 399137648), (2, 199568824), (4, 99784412), (7, 57019664), (8, 49892206), (13, 30702896), (14, 28509832), (16, 24946103), (26, 15351448), (28, 14254916), (31, 12875408), (37, 10787504), (52, 7675724), (56, 7127458), (62, 6437704), (74, 5393752), (91, 4386128), (104, 3837862), (112, 3563729), (124, 3218852), (148, 2696876), (182, 2193064), (208, 1918931), (217, 1839344), (239, 1670032), (248, 1609426), (259, 1541072), (296, 1348438), (364, 1096532), (403, 990416), (434, 919672), (478, 835016), (481, 829808), (496, 804713), (518, 770536), (592, 674219), (728, 548266), (806, 495208), (868, 459836), (956, 417508), (962, 414904), (1036, 385268), (1147, 347984), (1456, 274133), (1612, 247604), (1673, 238576), (1736, 229918), (1912, 208754), (1924, 207452), (2072, 192634), (2294, 173992), (2821, 141488), (3107, 128464), (3224, 123802), (3346, 119288), (3367, 118544), (3472, 114959), (3824, 104377), (3848, 103726), (4144, 96317), (4588, 86996), (5642, 70744), (6214, 64232), (6448, 61901), (6692, 59644), (6734, 59272), (7409, 53872), (7696, 51863), (8029, 49712), (8843, 45136), (9176, 43498), (11284, 35372), (12428, 32116), (13384, 29822), (13468, 29636), (14818, 26936), (14911, 26768), (16058, 24856), (17686, 22568), (18352, 21749)]