21591120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89963}}^1$

素因数の和:89979

約数の個数: 40

約数和(自身を含む): 66933216

約数和(自身を除く): 45342096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89963, 179926, 269889, 359852, 449815, 539778, 719704, 899630, 1079556, 1349445, 1439408, 1799260, 2159112, 2698890, 3598520, 4318224, 5397780, 7197040, 10795560, 21591120]

約数ペア:

[(1, 21591120), (2, 10795560), (3, 7197040), (4, 5397780), (5, 4318224), (6, 3598520), (8, 2698890), (10, 2159112), (12, 1799260), (15, 1439408), (16, 1349445), (20, 1079556), (24, 899630), (30, 719704), (40, 539778), (48, 449815), (60, 359852), (80, 269889), (120, 179926), (240, 89963)]