721012344

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{5821}}^1$

素因数の和:6240

約数の個数: 64

約数和(自身を含む): 1946411040

約数和(自身を除く): 1225398696

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 397, 794, 1191, 1588, 2382, 3176, 4764, 5161, 5821, 9528, 10322, 11642, 15483, 17463, 20644, 23284, 30966, 34926, 41288, 46568, 61932, 69852, 75673, 123864, 139704, 151346, 227019, 302692, 454038, 605384, 908076, 1816152, 2310937, 4621874, 6932811, 9243748, 13865622, 18487496, 27731244, 30042181, 55462488, 60084362, 90126543, 120168724, 180253086, 240337448, 360506172, 721012344]

約数ペア:

[(1, 721012344), (2, 360506172), (3, 240337448), (4, 180253086), (6, 120168724), (8, 90126543), (12, 60084362), (13, 55462488), (24, 30042181), (26, 27731244), (39, 18487496), (52, 13865622), (78, 9243748), (104, 6932811), (156, 4621874), (312, 2310937), (397, 1816152), (794, 908076), (1191, 605384), (1588, 454038), (2382, 302692), (3176, 227019), (4764, 151346), (5161, 139704), (5821, 123864), (9528, 75673), (10322, 69852), (11642, 61932), (15483, 46568), (17463, 41288), (20644, 34926), (23284, 30966)]