28492720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11489}}^1$

素因数の和:11533

約数の個数: 40

約数和(自身を含む): 68388480

約数和(自身を除く): 39895760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 11489, 22978, 45956, 57445, 91912, 114890, 183824, 229780, 356159, 459560, 712318, 919120, 1424636, 1780795, 2849272, 3561590, 5698544, 7123180, 14246360, 28492720]

約数ペア:

[(1, 28492720), (2, 14246360), (4, 7123180), (5, 5698544), (8, 3561590), (10, 2849272), (16, 1780795), (20, 1424636), (31, 919120), (40, 712318), (62, 459560), (80, 356159), (124, 229780), (155, 183824), (248, 114890), (310, 91912), (496, 57445), (620, 45956), (1240, 22978), (2480, 11489)]