18901025728

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{52709}}^1$

素因数の和:53165

約数の個数: 56

約数和(自身を含む): 40486340160

約数和(自身を除く): 21585314432

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 431, 832, 862, 1724, 3448, 5603, 6896, 11206, 13792, 22412, 27584, 44824, 52709, 89648, 105418, 179296, 210836, 358592, 421672, 685217, 843344, 1370434, 1686688, 2740868, 3373376, 5481736, 10963472, 21926944, 22717579, 43853888, 45435158, 90870316, 181740632, 295328527, 363481264, 590657054, 726962528, 1181314108, 1453925056, 2362628216, 4725256432, 9450512864, 18901025728]

約数ペア:

[(1, 18901025728), (2, 9450512864), (4, 4725256432), (8, 2362628216), (13, 1453925056), (16, 1181314108), (26, 726962528), (32, 590657054), (52, 363481264), (64, 295328527), (104, 181740632), (208, 90870316), (416, 45435158), (431, 43853888), (832, 22717579), (862, 21926944), (1724, 10963472), (3448, 5481736), (5603, 3373376), (6896, 2740868), (11206, 1686688), (13792, 1370434), (22412, 843344), (27584, 685217), (44824, 421672), (52709, 358592), (89648, 210836), (105418, 179296)]