20999648700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{328633}}^1$

素因数の和:328724

約数の個数: 108

約数和(自身を含む): 66749509008

約数和(自身を除く): 45749860308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 71, 75, 90, 100, 142, 150, 180, 213, 225, 284, 300, 355, 426, 450, 639, 710, 852, 900, 1065, 1278, 1420, 1775, 2130, 2556, 3195, 3550, 4260, 5325, 6390, 7100, 10650, 12780, 15975, 21300, 31950, 63900, 328633, 657266, 985899, 1314532, 1643165, 1971798, 2957697, 3286330, 3943596, 4929495, 5915394, 6572660, 8215825, 9858990, 11830788, 14788485, 16431650, 19717980, 23332943, 24647475, 29576970, 32863300, 46665886, 49294950, 59153940, 69998829, 73942425, 93331772, 98589900, 116664715, 139997658, 147884850, 209996487, 233329430, 279995316, 295769700, 349994145, 419992974, 466658860, 583323575, 699988290, 839985948, 1049982435, 1166647150, 1399976580, 1749970725, 2099964870, 2333294300, 3499941450, 4199929740, 5249912175, 6999882900, 10499824350, 20999648700]

約数ペア:

[(1, 20999648700), (2, 10499824350), (3, 6999882900), (4, 5249912175), (5, 4199929740), (6, 3499941450), (9, 2333294300), (10, 2099964870), (12, 1749970725), (15, 1399976580), (18, 1166647150), (20, 1049982435), (25, 839985948), (30, 699988290), (36, 583323575), (45, 466658860), (50, 419992974), (60, 349994145), (71, 295769700), (75, 279995316), (90, 233329430), (100, 209996487), (142, 147884850), (150, 139997658), (180, 116664715), (213, 98589900), (225, 93331772), (284, 73942425), (300, 69998829), (355, 59153940), (426, 49294950), (450, 46665886), (639, 32863300), (710, 29576970), (852, 24647475), (900, 23332943), (1065, 19717980), (1278, 16431650), (1420, 14788485), (1775, 11830788), (2130, 9858990), (2556, 8215825), (3195, 6572660), (3550, 5915394), (4260, 4929495), (5325, 3943596), (6390, 3286330), (7100, 2957697), (10650, 1971798), (12780, 1643165), (15975, 1314532), (21300, 985899), (31950, 657266), (63900, 328633)]