640957968

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2683}}^1$

素因数の和:2786

約数の個数: 160

約数和(自身を含む): 2130022400

約数和(自身を除く): 1489064432

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 79, 84, 108, 112, 126, 144, 158, 168, 189, 216, 237, 252, 316, 336, 378, 432, 474, 504, 553, 632, 711, 756, 948, 1008, 1106, 1264, 1422, 1512, 1659, 1896, 2133, 2212, 2683, 2844, 3024, 3318, 3792, 4266, 4424, 4977, 5366, 5688, 6636, 8049, 8532, 8848, 9954, 10732, 11376, 13272, 14931, 16098, 17064, 18781, 19908, 21464, 24147, 26544, 29862, 32196, 34128, 37562, 39816, 42928, 48294, 56343, 59724, 64392, 72441, 75124, 79632, 96588, 112686, 119448, 128784, 144882, 150248, 169029, 193176, 211957, 225372, 238896, 289764, 300496, 338058, 386352, 423914, 450744, 507087, 579528, 635871, 676116, 847828, 901488, 1014174, 1159056, 1271742, 1352232, 1483699, 1695656, 1907613, 2028348, 2543484, 2704464, 2967398, 3391312, 3815226, 4056696, 4451097, 5086968, 5722839, 5934796, 7630452, 8113392, 8902194, 10173936, 11445678, 11869592, 13353291, 15260904, 17804388, 22891356, 23739184, 26706582, 30521808, 35608776, 40059873, 45782712, 53413164, 71217552, 80119746, 91565424, 106826328, 160239492, 213652656, 320478984, 640957968]

約数ペア:

[(1, 640957968), (2, 320478984), (3, 213652656), (4, 160239492), (6, 106826328), (7, 91565424), (8, 80119746), (9, 71217552), (12, 53413164), (14, 45782712), (16, 40059873), (18, 35608776), (21, 30521808), (24, 26706582), (27, 23739184), (28, 22891356), (36, 17804388), (42, 15260904), (48, 13353291), (54, 11869592), (56, 11445678), (63, 10173936), (72, 8902194), (79, 8113392), (84, 7630452), (108, 5934796), (112, 5722839), (126, 5086968), (144, 4451097), (158, 4056696), (168, 3815226), (189, 3391312), (216, 2967398), (237, 2704464), (252, 2543484), (316, 2028348), (336, 1907613), (378, 1695656), (432, 1483699), (474, 1352232), (504, 1271742), (553, 1159056), (632, 1014174), (711, 901488), (756, 847828), (948, 676116), (1008, 635871), (1106, 579528), (1264, 507087), (1422, 450744), (1512, 423914), (1659, 386352), (1896, 338058), (2133, 300496), (2212, 289764), (2683, 238896), (2844, 225372), (3024, 211957), (3318, 193176), (3792, 169029), (4266, 150248), (4424, 144882), (4977, 128784), (5366, 119448), (5688, 112686), (6636, 96588), (8049, 79632), (8532, 75124), (8848, 72441), (9954, 64392), (10732, 59724), (11376, 56343), (13272, 48294), (14931, 42928), (16098, 39816), (17064, 37562), (18781, 34128), (19908, 32196), (21464, 29862), (24147, 26544)]