20487350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{733}}^1$

素因数の和:801

約数の個数: 48

約数和(自身を含む): 42049392

約数和(自身を除く): 21562042

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 650, 733, 1075, 1118, 1466, 2150, 2795, 3665, 5590, 7330, 9529, 13975, 18325, 19058, 27950, 31519, 36650, 47645, 63038, 95290, 157595, 238225, 315190, 409747, 476450, 787975, 819494, 1575950, 2048735, 4097470, 10243675, 20487350]

約数ペア:

[(1, 20487350), (2, 10243675), (5, 4097470), (10, 2048735), (13, 1575950), (25, 819494), (26, 787975), (43, 476450), (50, 409747), (65, 315190), (86, 238225), (130, 157595), (215, 95290), (325, 63038), (430, 47645), (559, 36650), (650, 31519), (733, 27950), (1075, 19058), (1118, 18325), (1466, 13975), (2150, 9529), (2795, 7330), (3665, 5590)]