20869980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18307}}^1$

素因数の和:18338

約数の個数: 48

約数和(自身を含む): 61514880

約数和(自身を除く): 40644900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18307, 36614, 54921, 73228, 91535, 109842, 183070, 219684, 274605, 347833, 366140, 549210, 695666, 1043499, 1098420, 1391332, 1739165, 2086998, 3478330, 4173996, 5217495, 6956660, 10434990, 20869980]

約数ペア:

[(1, 20869980), (2, 10434990), (3, 6956660), (4, 5217495), (5, 4173996), (6, 3478330), (10, 2086998), (12, 1739165), (15, 1391332), (19, 1098420), (20, 1043499), (30, 695666), (38, 549210), (57, 366140), (60, 347833), (76, 274605), (95, 219684), (114, 183070), (190, 109842), (228, 91535), (285, 73228), (380, 54921), (570, 36614), (1140, 18307)]