405839590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{919}}^1$

素因数の和:1061

約数の個数: 64

約数和(自身を含む): 816076800

約数和(自身を除く): 410237210

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 79, 86, 130, 158, 215, 395, 430, 559, 790, 919, 1027, 1118, 1838, 2054, 2795, 3397, 4595, 5135, 5590, 6794, 9190, 10270, 11947, 16985, 23894, 33970, 39517, 44161, 59735, 72601, 79034, 88322, 119470, 145202, 197585, 220805, 363005, 395170, 441610, 513721, 726010, 943813, 1027442, 1887626, 2568605, 3121843, 4719065, 5137210, 6243686, 9438130, 15609215, 31218430, 40583959, 81167918, 202919795, 405839590]

約数ペア:

[(1, 405839590), (2, 202919795), (5, 81167918), (10, 40583959), (13, 31218430), (26, 15609215), (43, 9438130), (65, 6243686), (79, 5137210), (86, 4719065), (130, 3121843), (158, 2568605), (215, 1887626), (395, 1027442), (430, 943813), (559, 726010), (790, 513721), (919, 441610), (1027, 395170), (1118, 363005), (1838, 220805), (2054, 197585), (2795, 145202), (3397, 119470), (4595, 88322), (5135, 79034), (5590, 72601), (6794, 59735), (9190, 44161), (10270, 39517), (11947, 33970), (16985, 23894)]