20181015428

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2579}}^1\times {\mathrm{5273}}^1$

素因数の和:7916

約数の個数: 48

約数和(自身を含む): 41147326080

約数和(自身を除く): 20966310652

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 2579, 5158, 5273, 10316, 10546, 18053, 21092, 36106, 36911, 72212, 73822, 136687, 147644, 273374, 279469, 546748, 558938, 956809, 1117876, 1913618, 1956283, 3827236, 3912566, 7825132, 13599067, 27198134, 54396268, 95193469, 190386938, 380773876, 720750551, 1441501102, 2883002204, 5045253857, 10090507714, 20181015428]

約数ペア:

[(1, 20181015428), (2, 10090507714), (4, 5045253857), (7, 2883002204), (14, 1441501102), (28, 720750551), (53, 380773876), (106, 190386938), (212, 95193469), (371, 54396268), (742, 27198134), (1484, 13599067), (2579, 7825132), (5158, 3912566), (5273, 3827236), (10316, 1956283), (10546, 1913618), (18053, 1117876), (21092, 956809), (36106, 558938), (36911, 546748), (72212, 279469), (73822, 273374), (136687, 147644)]