81017820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3847}}^1$

素因数の和:3881

約数の個数: 120

約数和(自身を含む): 273777504

約数和(自身を除く): 192759684

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 1053, 1170, 1404, 1620, 1755, 2106, 2340, 3510, 3847, 4212, 5265, 7020, 7694, 10530, 11541, 15388, 19235, 21060, 23082, 34623, 38470, 46164, 50011, 57705, 69246, 76940, 100022, 103869, 115410, 138492, 150033, 173115, 200044, 207738, 230820, 250055, 300066, 311607, 346230, 415476, 450099, 500110, 519345, 600132, 623214, 692460, 750165, 900198, 1000220, 1038690, 1246428, 1350297, 1500330, 1558035, 1800396, 2077380, 2250495, 2700594, 3000660, 3116070, 4050891, 4500990, 5401188, 6232140, 6751485, 8101782, 9001980, 13502970, 16203564, 20254455, 27005940, 40508910, 81017820]

約数ペア:

[(1, 81017820), (2, 40508910), (3, 27005940), (4, 20254455), (5, 16203564), (6, 13502970), (9, 9001980), (10, 8101782), (12, 6751485), (13, 6232140), (15, 5401188), (18, 4500990), (20, 4050891), (26, 3116070), (27, 3000660), (30, 2700594), (36, 2250495), (39, 2077380), (45, 1800396), (52, 1558035), (54, 1500330), (60, 1350297), (65, 1246428), (78, 1038690), (81, 1000220), (90, 900198), (108, 750165), (117, 692460), (130, 623214), (135, 600132), (156, 519345), (162, 500110), (180, 450099), (195, 415476), (234, 346230), (260, 311607), (270, 300066), (324, 250055), (351, 230820), (390, 207738), (405, 200044), (468, 173115), (540, 150033), (585, 138492), (702, 115410), (780, 103869), (810, 100022), (1053, 76940), (1170, 69246), (1404, 57705), (1620, 50011), (1755, 46164), (2106, 38470), (2340, 34623), (3510, 23082), (3847, 21060), (4212, 19235), (5265, 15388), (7020, 11541), (7694, 10530)]