201569440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{40639}}^1$

素因数の和:40685

約数の個数: 48

約数和(自身を含む): 491581440

約数和(自身を除く): 290012000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 40639, 81278, 162556, 203195, 325112, 406390, 650224, 812780, 1259809, 1300448, 1625560, 2519618, 3251120, 5039236, 6299045, 6502240, 10078472, 12598090, 20156944, 25196180, 40313888, 50392360, 100784720, 201569440]

約数ペア:

[(1, 201569440), (2, 100784720), (4, 50392360), (5, 40313888), (8, 25196180), (10, 20156944), (16, 12598090), (20, 10078472), (31, 6502240), (32, 6299045), (40, 5039236), (62, 3251120), (80, 2519618), (124, 1625560), (155, 1300448), (160, 1259809), (248, 812780), (310, 650224), (496, 406390), (620, 325112), (992, 203195), (1240, 162556), (2480, 81278), (4960, 40639)]