1645624540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{78889}}^1$

素因数の和:79054

約数の個数: 48

約数和(自身を含む): 3976056000

約数和(自身を除く): 2330431460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 5215, 10430, 20860, 78889, 157778, 315556, 394445, 552223, 788890, 1104446, 1577780, 2208892, 2761115, 5522230, 11044460, 11754461, 23508922, 47017844, 58772305, 82281227, 117544610, 164562454, 235089220, 329124908, 411406135, 822812270, 1645624540]

約数ペア:

[(1, 1645624540), (2, 822812270), (4, 411406135), (5, 329124908), (7, 235089220), (10, 164562454), (14, 117544610), (20, 82281227), (28, 58772305), (35, 47017844), (70, 23508922), (140, 11754461), (149, 11044460), (298, 5522230), (596, 2761115), (745, 2208892), (1043, 1577780), (1490, 1104446), (2086, 788890), (2980, 552223), (4172, 394445), (5215, 315556), (10430, 157778), (20860, 78889)]