27969440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5639}}^1$

素因数の和:5685

約数の個数: 48

約数和(自身を含む): 68221440

約数和(自身を除く): 40252000

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, 5639, 11278, 22556, 28195, 45112, 56390, 90224, 112780, 174809, 180448, 225560, 349618, 451120, 699236, 874045, 902240, 1398472, 1748090, 2796944, 3496180, 5593888, 6992360, 13984720, 27969440]

約数ペア:

[(1, 27969440), (2, 13984720), (4, 6992360), (5, 5593888), (8, 3496180), (10, 2796944), (16, 1748090), (20, 1398472), (31, 902240), (32, 874045), (40, 699236), (62, 451120), (80, 349618), (124, 225560), (155, 180448), (160, 174809), (248, 112780), (310, 90224), (496, 56390), (620, 45112), (992, 28195), (1240, 22556), (2480, 11278), (4960, 5639)]