38979980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8819}}^1$

素因数の和:8858

約数の個数: 48

約数和(自身を含む): 93350880

約数和(自身を除く): 54370900

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 8819, 17638, 35276, 44095, 88190, 114647, 149923, 176380, 229294, 299846, 458588, 573235, 599692, 749615, 1146470, 1499230, 1948999, 2292940, 2998460, 3897998, 7795996, 9744995, 19489990, 38979980]

約数ペア:

[(1, 38979980), (2, 19489990), (4, 9744995), (5, 7795996), (10, 3897998), (13, 2998460), (17, 2292940), (20, 1948999), (26, 1499230), (34, 1146470), (52, 749615), (65, 599692), (68, 573235), (85, 458588), (130, 299846), (170, 229294), (221, 176380), (260, 149923), (340, 114647), (442, 88190), (884, 44095), (1105, 35276), (2210, 17638), (4420, 8819)]