399084812

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{487}}^1$

素因数の和:655

約数の個数: 72

約数和(自身を含む): 843492384

約数和(自身を除く): 444407572

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 113, 148, 196, 226, 259, 452, 487, 518, 791, 974, 1036, 1582, 1813, 1948, 3164, 3409, 3626, 4181, 5537, 6818, 7252, 8362, 11074, 13636, 16724, 18019, 22148, 23863, 29267, 36038, 47726, 55031, 58534, 72076, 95452, 110062, 117068, 126133, 204869, 220124, 252266, 385217, 409738, 504532, 770434, 819476, 882931, 1540868, 1765862, 2036147, 2696519, 3531724, 4072294, 5393038, 8144588, 10786076, 14253029, 28506058, 57012116, 99771203, 199542406, 399084812]

約数ペア:

[(1, 399084812), (2, 199542406), (4, 99771203), (7, 57012116), (14, 28506058), (28, 14253029), (37, 10786076), (49, 8144588), (74, 5393038), (98, 4072294), (113, 3531724), (148, 2696519), (196, 2036147), (226, 1765862), (259, 1540868), (452, 882931), (487, 819476), (518, 770434), (791, 504532), (974, 409738), (1036, 385217), (1582, 252266), (1813, 220124), (1948, 204869), (3164, 126133), (3409, 117068), (3626, 110062), (4181, 95452), (5537, 72076), (6818, 58534), (7252, 55031), (8362, 47726), (11074, 36038), (13636, 29267), (16724, 23863), (18019, 22148)]