1278545380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1069}}^1\times {\mathrm{8543}}^1$

素因数の和:9628

約数の個数: 48

約数和(自身を含む): 3071738880

約数和(自身を除く): 1793193500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1069, 2138, 4276, 5345, 7483, 8543, 10690, 14966, 17086, 21380, 29932, 34172, 37415, 42715, 59801, 74830, 85430, 119602, 149660, 170860, 239204, 299005, 598010, 1196020, 9132467, 18264934, 36529868, 45662335, 63927269, 91324670, 127854538, 182649340, 255709076, 319636345, 639272690, 1278545380]

約数ペア:

[(1, 1278545380), (2, 639272690), (4, 319636345), (5, 255709076), (7, 182649340), (10, 127854538), (14, 91324670), (20, 63927269), (28, 45662335), (35, 36529868), (70, 18264934), (140, 9132467), (1069, 1196020), (2138, 598010), (4276, 299005), (5345, 239204), (7483, 170860), (8543, 149660), (10690, 119602), (14966, 85430), (17086, 74830), (21380, 59801), (29932, 42715), (34172, 37415)]