211029680

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{277}}^1$

素因数の和:486

約数の個数: 80

約数和(自身を含む): 502601760

約数和(自身を除く): 291572080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 107, 178, 214, 277, 356, 428, 445, 535, 554, 712, 856, 890, 1070, 1108, 1385, 1424, 1712, 1780, 2140, 2216, 2770, 3560, 4280, 4432, 5540, 7120, 8560, 9523, 11080, 19046, 22160, 24653, 29639, 38092, 47615, 49306, 59278, 76184, 95230, 98612, 118556, 123265, 148195, 152368, 190460, 197224, 237112, 246530, 296390, 380920, 394448, 474224, 493060, 592780, 761840, 986120, 1185560, 1972240, 2371120, 2637871, 5275742, 10551484, 13189355, 21102968, 26378710, 42205936, 52757420, 105514840, 211029680]

約数ペア:

[(1, 211029680), (2, 105514840), (4, 52757420), (5, 42205936), (8, 26378710), (10, 21102968), (16, 13189355), (20, 10551484), (40, 5275742), (80, 2637871), (89, 2371120), (107, 1972240), (178, 1185560), (214, 986120), (277, 761840), (356, 592780), (428, 493060), (445, 474224), (535, 394448), (554, 380920), (712, 296390), (856, 246530), (890, 237112), (1070, 197224), (1108, 190460), (1385, 152368), (1424, 148195), (1712, 123265), (1780, 118556), (2140, 98612), (2216, 95230), (2770, 76184), (3560, 59278), (4280, 49306), (4432, 47615), (5540, 38092), (7120, 29639), (8560, 24653), (9523, 22160), (11080, 19046)]