392790820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{1481}}^1$

素因数の和:1728

約数の個数: 48

約数和(自身を含む): 840294000

約数和(自身を除く): 447503180

約数列:

[1, 2, 4, 5, 10, 20, 89, 149, 178, 298, 356, 445, 596, 745, 890, 1481, 1490, 1780, 2962, 2980, 5924, 7405, 13261, 14810, 26522, 29620, 53044, 66305, 131809, 132610, 220669, 263618, 265220, 441338, 527236, 659045, 882676, 1103345, 1318090, 2206690, 2636180, 4413380, 19639541, 39279082, 78558164, 98197705, 196395410, 392790820]

約数ペア:

[(1, 392790820), (2, 196395410), (4, 98197705), (5, 78558164), (10, 39279082), (20, 19639541), (89, 4413380), (149, 2636180), (178, 2206690), (298, 1318090), (356, 1103345), (445, 882676), (596, 659045), (745, 527236), (890, 441338), (1481, 265220), (1490, 263618), (1780, 220669), (2962, 132610), (2980, 131809), (5924, 66305), (7405, 53044), (13261, 29620), (14810, 26522)]