20485560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3221}}^1$

素因数の和:3288

約数の個数: 64

約数和(自身を含む): 62635680

約数和(自身を除く): 42150120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 318, 424, 530, 636, 795, 1060, 1272, 1590, 2120, 3180, 3221, 6360, 6442, 9663, 12884, 16105, 19326, 25768, 32210, 38652, 48315, 64420, 77304, 96630, 128840, 170713, 193260, 341426, 386520, 512139, 682852, 853565, 1024278, 1365704, 1707130, 2048556, 2560695, 3414260, 4097112, 5121390, 6828520, 10242780, 20485560]

約数ペア:

[(1, 20485560), (2, 10242780), (3, 6828520), (4, 5121390), (5, 4097112), (6, 3414260), (8, 2560695), (10, 2048556), (12, 1707130), (15, 1365704), (20, 1024278), (24, 853565), (30, 682852), (40, 512139), (53, 386520), (60, 341426), (106, 193260), (120, 170713), (159, 128840), (212, 96630), (265, 77304), (318, 64420), (424, 48315), (530, 38652), (636, 32210), (795, 25768), (1060, 19326), (1272, 16105), (1590, 12884), (2120, 9663), (3180, 6442), (3221, 6360)]