1887726920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67709}}^1$

素因数の和:67778

約数の個数: 64

約数和(自身を含む): 4606988400

約数和(自身を除く): 2719261480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 680, 697, 820, 1394, 1640, 2788, 3485, 5576, 6970, 13940, 27880, 67709, 135418, 270836, 338545, 541672, 677090, 1151053, 1354180, 2302106, 2708360, 2776069, 4604212, 5552138, 5755265, 9208424, 11104276, 11510530, 13880345, 22208552, 23021060, 27760690, 46042120, 47193173, 55521380, 94386346, 111042760, 188772692, 235965865, 377545384, 471931730, 943863460, 1887726920]

約数ペア:

[(1, 1887726920), (2, 943863460), (4, 471931730), (5, 377545384), (8, 235965865), (10, 188772692), (17, 111042760), (20, 94386346), (34, 55521380), (40, 47193173), (41, 46042120), (68, 27760690), (82, 23021060), (85, 22208552), (136, 13880345), (164, 11510530), (170, 11104276), (205, 9208424), (328, 5755265), (340, 5552138), (410, 4604212), (680, 2776069), (697, 2708360), (820, 2302106), (1394, 1354180), (1640, 1151053), (2788, 677090), (3485, 541672), (5576, 338545), (6970, 270836), (13940, 135418), (27880, 67709)]