71438320

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{14639}}^1$

素因数の和:14713

約数の個数: 40

約数和(自身を含む): 168828480

約数和(自身を除く): 97390160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 14639, 29278, 58556, 73195, 117112, 146390, 234224, 292780, 585560, 892979, 1171120, 1785958, 3571916, 4464895, 7143832, 8929790, 14287664, 17859580, 35719160, 71438320]

約数ペア:

[(1, 71438320), (2, 35719160), (4, 17859580), (5, 14287664), (8, 8929790), (10, 7143832), (16, 4464895), (20, 3571916), (40, 1785958), (61, 1171120), (80, 892979), (122, 585560), (244, 292780), (305, 234224), (488, 146390), (610, 117112), (976, 73195), (1220, 58556), (2440, 29278), (4880, 14639)]