20728048392

素因数分解:

$2^3\times 3^4\times {\mathrm{61}}^1\times {\mathrm{524389}}^1$

素因数の和:524468

約数の個数: 80

約数和(自身を含む): 59009606700

約数和(自身を除く): 38281558308

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 61, 72, 81, 108, 122, 162, 183, 216, 244, 324, 366, 488, 549, 648, 732, 1098, 1464, 1647, 2196, 3294, 4392, 4941, 6588, 9882, 13176, 19764, 39528, 524389, 1048778, 1573167, 2097556, 3146334, 4195112, 4719501, 6292668, 9439002, 12585336, 14158503, 18878004, 28317006, 31987729, 37756008, 42475509, 56634012, 63975458, 84951018, 95963187, 113268024, 127950916, 169902036, 191926374, 255901832, 287889561, 339804072, 383852748, 575779122, 767705496, 863668683, 1151558244, 1727337366, 2303116488, 2591006049, 3454674732, 5182012098, 6909349464, 10364024196, 20728048392]

約数ペア:

[(1, 20728048392), (2, 10364024196), (3, 6909349464), (4, 5182012098), (6, 3454674732), (8, 2591006049), (9, 2303116488), (12, 1727337366), (18, 1151558244), (24, 863668683), (27, 767705496), (36, 575779122), (54, 383852748), (61, 339804072), (72, 287889561), (81, 255901832), (108, 191926374), (122, 169902036), (162, 127950916), (183, 113268024), (216, 95963187), (244, 84951018), (324, 63975458), (366, 56634012), (488, 42475509), (549, 37756008), (648, 31987729), (732, 28317006), (1098, 18878004), (1464, 14158503), (1647, 12585336), (2196, 9439002), (3294, 6292668), (4392, 4719501), (4941, 4195112), (6588, 3146334), (9882, 2097556), (13176, 1573167), (19764, 1048778), (39528, 524389)]