31278690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 89303040

約数和(自身を除く): 58024350

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 37, 45, 54, 62, 74, 90, 93, 101, 111, 135, 155, 185, 186, 202, 222, 270, 279, 303, 310, 333, 370, 465, 505, 555, 558, 606, 666, 837, 909, 930, 999, 1010, 1110, 1147, 1395, 1515, 1665, 1674, 1818, 1998, 2294, 2727, 2790, 3030, 3131, 3330, 3441, 3737, 4185, 4545, 4995, 5454, 5735, 6262, 6882, 7474, 8370, 9090, 9393, 9990, 10323, 11211, 11470, 13635, 15655, 17205, 18685, 18786, 20646, 22422, 27270, 28179, 30969, 31310, 33633, 34410, 37370, 46965, 51615, 56055, 56358, 61938, 67266, 84537, 93930, 100899, 103230, 112110, 115847, 140895, 154845, 168165, 169074, 201798, 231694, 281790, 309690, 336330, 347541, 422685, 504495, 579235, 695082, 845370, 1008990, 1042623, 1158470, 1737705, 2085246, 3127869, 3475410, 5213115, 6255738, 10426230, 15639345, 31278690]

約数ペア:

[(1, 31278690), (2, 15639345), (3, 10426230), (5, 6255738), (6, 5213115), (9, 3475410), (10, 3127869), (15, 2085246), (18, 1737705), (27, 1158470), (30, 1042623), (31, 1008990), (37, 845370), (45, 695082), (54, 579235), (62, 504495), (74, 422685), (90, 347541), (93, 336330), (101, 309690), (111, 281790), (135, 231694), (155, 201798), (185, 169074), (186, 168165), (202, 154845), (222, 140895), (270, 115847), (279, 112110), (303, 103230), (310, 100899), (333, 93930), (370, 84537), (465, 67266), (505, 61938), (555, 56358), (558, 56055), (606, 51615), (666, 46965), (837, 37370), (909, 34410), (930, 33633), (999, 31310), (1010, 30969), (1110, 28179), (1147, 27270), (1395, 22422), (1515, 20646), (1665, 18786), (1674, 18685), (1818, 17205), (1998, 15655), (2294, 13635), (2727, 11470), (2790, 11211), (3030, 10323), (3131, 9990), (3330, 9393), (3441, 9090), (3737, 8370), (4185, 7474), (4545, 6882), (4995, 6262), (5454, 5735)]