211560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:98

約数の個数: 64

約数和(自身を含む): 665280

約数和(自身を除く): 453720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 43, 60, 82, 86, 120, 123, 129, 164, 172, 205, 215, 246, 258, 328, 344, 410, 430, 492, 516, 615, 645, 820, 860, 984, 1032, 1230, 1290, 1640, 1720, 1763, 2460, 2580, 3526, 4920, 5160, 5289, 7052, 8815, 10578, 14104, 17630, 21156, 26445, 35260, 42312, 52890, 70520, 105780, 211560]

約数ペア:

[(1, 211560), (2, 105780), (3, 70520), (4, 52890), (5, 42312), (6, 35260), (8, 26445), (10, 21156), (12, 17630), (15, 14104), (20, 10578), (24, 8815), (30, 7052), (40, 5289), (41, 5160), (43, 4920), (60, 3526), (82, 2580), (86, 2460), (120, 1763), (123, 1720), (129, 1640), (164, 1290), (172, 1230), (205, 1032), (215, 984), (246, 860), (258, 820), (328, 645), (344, 615), (410, 516), (430, 492)]