19890864105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1699}}^1\times {\mathrm{2593}}^1$

素因数の和:4350

約数の個数: 64

約数和(自身を含む): 37253990400

約数和(自身を除く): 17363126295

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 1699, 2593, 4515, 5097, 7779, 8495, 11893, 12965, 18151, 25485, 35679, 38895, 54453, 59465, 73057, 90755, 111499, 178395, 219171, 272265, 334497, 365285, 511399, 557495, 780493, 1095855, 1534197, 1672485, 2341479, 2556995, 3902465, 4405507, 7670985, 11707395, 13216521, 22027535, 30838549, 66082605, 92515647, 154192745, 189436801, 462578235, 568310403, 947184005, 1326057607, 2841552015, 3978172821, 6630288035, 19890864105]

約数ペア:

[(1, 19890864105), (3, 6630288035), (5, 3978172821), (7, 2841552015), (15, 1326057607), (21, 947184005), (35, 568310403), (43, 462578235), (105, 189436801), (129, 154192745), (215, 92515647), (301, 66082605), (645, 30838549), (903, 22027535), (1505, 13216521), (1699, 11707395), (2593, 7670985), (4515, 4405507), (5097, 3902465), (7779, 2556995), (8495, 2341479), (11893, 1672485), (12965, 1534197), (18151, 1095855), (25485, 780493), (35679, 557495), (38895, 511399), (54453, 365285), (59465, 334497), (73057, 272265), (90755, 219171), (111499, 178395)]