388384540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1\times {\mathrm{613}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 829342080

約数和(自身を除く): 440957540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 401, 613, 790, 802, 1226, 1580, 1604, 2005, 2452, 3065, 4010, 6130, 8020, 12260, 31679, 48427, 63358, 96854, 126716, 158395, 193708, 242135, 245813, 316790, 484270, 491626, 633580, 968540, 983252, 1229065, 2458130, 4916260, 19419227, 38838454, 77676908, 97096135, 194192270, 388384540]

約数ペア:

[(1, 388384540), (2, 194192270), (4, 97096135), (5, 77676908), (10, 38838454), (20, 19419227), (79, 4916260), (158, 2458130), (316, 1229065), (395, 983252), (401, 968540), (613, 633580), (790, 491626), (802, 484270), (1226, 316790), (1580, 245813), (1604, 242135), (2005, 193708), (2452, 158395), (3065, 126716), (4010, 96854), (6130, 63358), (8020, 48427), (12260, 31679)]