388640280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{462667}}^1$

素因数の和:462688

約数の個数: 64

約数和(自身を含む): 1332483840

約数和(自身を除く): 943843560

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, 462667, 925334, 1388001, 1850668, 2313335, 2776002, 3238669, 3701336, 4626670, 5552004, 6477338, 6940005, 9253340, 9716007, 11104008, 12954676, 13880010, 16193345, 18506680, 19432014, 25909352, 27760020, 32386690, 38864028, 48580035, 55520040, 64773380, 77728056, 97160070, 129546760, 194320140, 388640280]

約数ペア:

[(1, 388640280), (2, 194320140), (3, 129546760), (4, 97160070), (5, 77728056), (6, 64773380), (7, 55520040), (8, 48580035), (10, 38864028), (12, 32386690), (14, 27760020), (15, 25909352), (20, 19432014), (21, 18506680), (24, 16193345), (28, 13880010), (30, 12954676), (35, 11104008), (40, 9716007), (42, 9253340), (56, 6940005), (60, 6477338), (70, 5552004), (84, 4626670), (105, 3701336), (120, 3238669), (140, 2776002), (168, 2313335), (210, 1850668), (280, 1388001), (420, 925334), (840, 462667)]