281784420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{181}}^1$

素因数の和:264

約数の個数: 180

約数和(自身を含む): 918449532

約数和(自身を除く): 636665112

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 181, 186, 270, 279, 310, 324, 362, 372, 405, 465, 540, 543, 558, 620, 724, 810, 837, 905, 930, 961, 1086, 1116, 1395, 1620, 1629, 1674, 1810, 1860, 1922, 2172, 2511, 2715, 2790, 2883, 3258, 3348, 3620, 3844, 4185, 4805, 4887, 5022, 5430, 5580, 5611, 5766, 6516, 8145, 8370, 8649, 9610, 9774, 10044, 10860, 11222, 11532, 12555, 14415, 14661, 16290, 16740, 16833, 17298, 19220, 19548, 22444, 24435, 25110, 25947, 28055, 28830, 29322, 32580, 33666, 34596, 43245, 48870, 50220, 50499, 51894, 56110, 57660, 58644, 67332, 73305, 77841, 84165, 86490, 97740, 100998, 103788, 112220, 129735, 146610, 151497, 155682, 168330, 172980, 173941, 201996, 252495, 259470, 293220, 302994, 311364, 336660, 347882, 389205, 454491, 504990, 518940, 521823, 605988, 695764, 757485, 778410, 869705, 908982, 1009980, 1043646, 1514970, 1556820, 1565469, 1739410, 1817964, 2087292, 2272455, 2609115, 3029940, 3130938, 3478820, 4544910, 4696407, 5218230, 6261876, 7827345, 9089820, 9392814, 10436460, 14089221, 15654690, 18785628, 23482035, 28178442, 31309380, 46964070, 56356884, 70446105, 93928140, 140892210, 281784420]

約数ペア:

[(1, 281784420), (2, 140892210), (3, 93928140), (4, 70446105), (5, 56356884), (6, 46964070), (9, 31309380), (10, 28178442), (12, 23482035), (15, 18785628), (18, 15654690), (20, 14089221), (27, 10436460), (30, 9392814), (31, 9089820), (36, 7827345), (45, 6261876), (54, 5218230), (60, 4696407), (62, 4544910), (81, 3478820), (90, 3130938), (93, 3029940), (108, 2609115), (124, 2272455), (135, 2087292), (155, 1817964), (162, 1739410), (180, 1565469), (181, 1556820), (186, 1514970), (270, 1043646), (279, 1009980), (310, 908982), (324, 869705), (362, 778410), (372, 757485), (405, 695764), (465, 605988), (540, 521823), (543, 518940), (558, 504990), (620, 454491), (724, 389205), (810, 347882), (837, 336660), (905, 311364), (930, 302994), (961, 293220), (1086, 259470), (1116, 252495), (1395, 201996), (1620, 173941), (1629, 172980), (1674, 168330), (1810, 155682), (1860, 151497), (1922, 146610), (2172, 129735), (2511, 112220), (2715, 103788), (2790, 100998), (2883, 97740), (3258, 86490), (3348, 84165), (3620, 77841), (3844, 73305), (4185, 67332), (4805, 58644), (4887, 57660), (5022, 56110), (5430, 51894), (5580, 50499), (5611, 50220), (5766, 48870), (6516, 43245), (8145, 34596), (8370, 33666), (8649, 32580), (9610, 29322), (9774, 28830), (10044, 28055), (10860, 25947), (11222, 25110), (11532, 24435), (12555, 22444), (14415, 19548), (14661, 19220), (16290, 17298), (16740, 16833)]