18435664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1453}}^1$

素因数の和:1535

約数の個数: 40

約数和(自身を含む): 39124232

約数和(自身を除く): 20688568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1453, 1586, 2906, 3172, 5812, 6344, 11624, 12688, 18889, 23248, 37778, 75556, 88633, 151112, 177266, 302224, 354532, 709064, 1152229, 1418128, 2304458, 4608916, 9217832, 18435664]

約数ペア:

[(1, 18435664), (2, 9217832), (4, 4608916), (8, 2304458), (13, 1418128), (16, 1152229), (26, 709064), (52, 354532), (61, 302224), (104, 177266), (122, 151112), (208, 88633), (244, 75556), (488, 37778), (793, 23248), (976, 18889), (1453, 12688), (1586, 11624), (2906, 6344), (3172, 5812)]