208607308

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 500505600

約数和(自身を除く): 291898292

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 31, 38, 49, 52, 62, 76, 91, 98, 124, 133, 139, 182, 196, 217, 247, 266, 278, 364, 403, 434, 494, 532, 556, 589, 637, 806, 868, 931, 973, 988, 1178, 1274, 1519, 1612, 1729, 1807, 1862, 1946, 2356, 2548, 2641, 2821, 3038, 3458, 3614, 3724, 3892, 4123, 4309, 5282, 5642, 6076, 6811, 6916, 7228, 7657, 8246, 8618, 10564, 11284, 12103, 12649, 13622, 15314, 16492, 17236, 18487, 19747, 24206, 25298, 27244, 28861, 30163, 30628, 34333, 36974, 39494, 48412, 50596, 53599, 56017, 57722, 60326, 68666, 73948, 78988, 81871, 88543, 107198, 112034, 115444, 120652, 129409, 137332, 163742, 177086, 211141, 214396, 224068, 240331, 258818, 327484, 354172, 375193, 392119, 422282, 480662, 517636, 573097, 750386, 784238, 844564, 961324, 1064323, 1146194, 1500772, 1568476, 1682317, 2128646, 2292388, 2744833, 3364634, 4011679, 4257292, 5489666, 6729268, 7450261, 8023358, 10979332, 14900522, 16046716, 29801044, 52151827, 104303654, 208607308]

約数ペア:

[(1, 208607308), (2, 104303654), (4, 52151827), (7, 29801044), (13, 16046716), (14, 14900522), (19, 10979332), (26, 8023358), (28, 7450261), (31, 6729268), (38, 5489666), (49, 4257292), (52, 4011679), (62, 3364634), (76, 2744833), (91, 2292388), (98, 2128646), (124, 1682317), (133, 1568476), (139, 1500772), (182, 1146194), (196, 1064323), (217, 961324), (247, 844564), (266, 784238), (278, 750386), (364, 573097), (403, 517636), (434, 480662), (494, 422282), (532, 392119), (556, 375193), (589, 354172), (637, 327484), (806, 258818), (868, 240331), (931, 224068), (973, 214396), (988, 211141), (1178, 177086), (1274, 163742), (1519, 137332), (1612, 129409), (1729, 120652), (1807, 115444), (1862, 112034), (1946, 107198), (2356, 88543), (2548, 81871), (2641, 78988), (2821, 73948), (3038, 68666), (3458, 60326), (3614, 57722), (3724, 56017), (3892, 53599), (4123, 50596), (4309, 48412), (5282, 39494), (5642, 36974), (6076, 34333), (6811, 30628), (6916, 30163), (7228, 28861), (7657, 27244), (8246, 25298), (8618, 24206), (10564, 19747), (11284, 18487), (12103, 17236), (12649, 16492), (13622, 15314)]