20929740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26833}}^1$

素因数の和:26858

約数の個数: 48

約数和(自身を含む): 63113568

約数和(自身を除く): 42183828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26833, 53666, 80499, 107332, 134165, 160998, 268330, 321996, 348829, 402495, 536660, 697658, 804990, 1046487, 1395316, 1609980, 1744145, 2092974, 3488290, 4185948, 5232435, 6976580, 10464870, 20929740]

約数ペア:

[(1, 20929740), (2, 10464870), (3, 6976580), (4, 5232435), (5, 4185948), (6, 3488290), (10, 2092974), (12, 1744145), (13, 1609980), (15, 1395316), (20, 1046487), (26, 804990), (30, 697658), (39, 536660), (52, 402495), (60, 348829), (65, 321996), (78, 268330), (130, 160998), (156, 134165), (195, 107332), (260, 80499), (390, 53666), (780, 26833)]