420960904

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:891

約数の個数: 128

約数和(自身を含む): 1047674880

約数和(自身を除く): 626713976

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 31, 46, 52, 56, 62, 91, 92, 104, 124, 161, 182, 184, 217, 248, 299, 322, 364, 403, 434, 598, 644, 713, 728, 806, 811, 868, 1196, 1288, 1426, 1612, 1622, 1736, 2093, 2392, 2821, 2852, 3224, 3244, 4186, 4991, 5642, 5677, 5704, 6488, 8372, 9269, 9982, 10543, 11284, 11354, 16744, 18538, 18653, 19964, 21086, 22568, 22708, 25141, 37076, 37306, 39928, 42172, 45416, 50282, 64883, 73801, 74152, 74612, 84344, 100564, 129766, 130571, 147602, 149224, 175987, 201128, 242489, 259532, 261142, 295204, 326833, 351974, 484978, 519064, 522284, 578243, 590408, 653666, 703948, 969956, 1044568, 1156486, 1307332, 1407896, 1697423, 1939912, 2287831, 2312972, 2614664, 3394846, 4047701, 4575662, 4625944, 6789692, 7517159, 8095402, 9151324, 13579384, 15034318, 16190804, 18302648, 30068636, 32381608, 52620113, 60137272, 105240226, 210480452, 420960904]

約数ペア:

[(1, 420960904), (2, 210480452), (4, 105240226), (7, 60137272), (8, 52620113), (13, 32381608), (14, 30068636), (23, 18302648), (26, 16190804), (28, 15034318), (31, 13579384), (46, 9151324), (52, 8095402), (56, 7517159), (62, 6789692), (91, 4625944), (92, 4575662), (104, 4047701), (124, 3394846), (161, 2614664), (182, 2312972), (184, 2287831), (217, 1939912), (248, 1697423), (299, 1407896), (322, 1307332), (364, 1156486), (403, 1044568), (434, 969956), (598, 703948), (644, 653666), (713, 590408), (728, 578243), (806, 522284), (811, 519064), (868, 484978), (1196, 351974), (1288, 326833), (1426, 295204), (1612, 261142), (1622, 259532), (1736, 242489), (2093, 201128), (2392, 175987), (2821, 149224), (2852, 147602), (3224, 130571), (3244, 129766), (4186, 100564), (4991, 84344), (5642, 74612), (5677, 74152), (5704, 73801), (6488, 64883), (8372, 50282), (9269, 45416), (9982, 42172), (10543, 39928), (11284, 37306), (11354, 37076), (16744, 25141), (18538, 22708), (18653, 22568), (19964, 21086)]