728904120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{867743}}^1$

素因数の和:867764

約数の個数: 64

約数和(自身を含む): 2499102720

約数和(自身を除く): 1770198600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 867743, 1735486, 2603229, 3470972, 4338715, 5206458, 6074201, 6941944, 8677430, 10412916, 12148402, 13016145, 17354860, 18222603, 20825832, 24296804, 26032290, 30371005, 34709720, 36445206, 48593608, 52064580, 60742010, 72890412, 91113015, 104129160, 121484020, 145780824, 182226030, 242968040, 364452060, 728904120]

約数ペア:

[(1, 728904120), (2, 364452060), (3, 242968040), (4, 182226030), (5, 145780824), (6, 121484020), (7, 104129160), (8, 91113015), (10, 72890412), (12, 60742010), (14, 52064580), (15, 48593608), (20, 36445206), (21, 34709720), (24, 30371005), (28, 26032290), (30, 24296804), (35, 20825832), (40, 18222603), (42, 17354860), (56, 13016145), (60, 12148402), (70, 10412916), (84, 8677430), (105, 6941944), (120, 6074201), (140, 5206458), (168, 4338715), (210, 3470972), (280, 2603229), (420, 1735486), (840, 867743)]