18861950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:369

約数の個数: 48

約数和(自身を含む): 37188096

約数和(自身を除く): 18326146

約数列:

[1, 2, 5, 10, 25, 31, 43, 50, 62, 86, 155, 215, 283, 310, 430, 566, 775, 1075, 1333, 1415, 1550, 2150, 2666, 2830, 6665, 7075, 8773, 12169, 13330, 14150, 17546, 24338, 33325, 43865, 60845, 66650, 87730, 121690, 219325, 304225, 377239, 438650, 608450, 754478, 1886195, 3772390, 9430975, 18861950]

約数ペア:

[(1, 18861950), (2, 9430975), (5, 3772390), (10, 1886195), (25, 754478), (31, 608450), (43, 438650), (50, 377239), (62, 304225), (86, 219325), (155, 121690), (215, 87730), (283, 66650), (310, 60845), (430, 43865), (566, 33325), (775, 24338), (1075, 17546), (1333, 14150), (1415, 13330), (1550, 12169), (2150, 8773), (2666, 7075), (2830, 6665)]