1780988190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1380611}}^1$

素因数の和:1380664

約数の個数: 32

約数和(自身を含む): 4373778816

約数和(自身を除く): 2592790626

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 1380611, 2761222, 4141833, 6903055, 8283666, 13806110, 20709165, 41418330, 59366273, 118732546, 178098819, 296831365, 356197638, 593662730, 890494095, 1780988190]

約数ペア:

[(1, 1780988190), (2, 890494095), (3, 593662730), (5, 356197638), (6, 296831365), (10, 178098819), (15, 118732546), (30, 59366273), (43, 41418330), (86, 20709165), (129, 13806110), (215, 8283666), (258, 6903055), (430, 4141833), (645, 2761222), (1290, 1380611)]