61520940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:520

約数の個数: 144

約数和(自身を含む): 204736896

約数和(自身を除く): 143215956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 61, 65, 78, 90, 117, 122, 130, 156, 180, 183, 195, 234, 244, 260, 305, 366, 390, 431, 468, 549, 585, 610, 732, 780, 793, 862, 915, 1098, 1170, 1220, 1293, 1586, 1724, 1830, 2155, 2196, 2340, 2379, 2586, 2745, 3172, 3660, 3879, 3965, 4310, 4758, 5172, 5490, 5603, 6465, 7137, 7758, 7930, 8620, 9516, 10980, 11206, 11895, 12930, 14274, 15516, 15860, 16809, 19395, 22412, 23790, 25860, 26291, 28015, 28548, 33618, 35685, 38790, 47580, 50427, 52582, 56030, 67236, 71370, 77580, 78873, 84045, 100854, 105164, 112060, 131455, 142740, 157746, 168090, 201708, 236619, 252135, 262910, 315492, 336180, 341783, 394365, 473238, 504270, 525820, 683566, 788730, 946476, 1008540, 1025349, 1183095, 1367132, 1577460, 1708915, 2050698, 2366190, 3076047, 3417830, 4101396, 4732380, 5126745, 6152094, 6835660, 10253490, 12304188, 15380235, 20506980, 30760470, 61520940]

約数ペア:

[(1, 61520940), (2, 30760470), (3, 20506980), (4, 15380235), (5, 12304188), (6, 10253490), (9, 6835660), (10, 6152094), (12, 5126745), (13, 4732380), (15, 4101396), (18, 3417830), (20, 3076047), (26, 2366190), (30, 2050698), (36, 1708915), (39, 1577460), (45, 1367132), (52, 1183095), (60, 1025349), (61, 1008540), (65, 946476), (78, 788730), (90, 683566), (117, 525820), (122, 504270), (130, 473238), (156, 394365), (180, 341783), (183, 336180), (195, 315492), (234, 262910), (244, 252135), (260, 236619), (305, 201708), (366, 168090), (390, 157746), (431, 142740), (468, 131455), (549, 112060), (585, 105164), (610, 100854), (732, 84045), (780, 78873), (793, 77580), (862, 71370), (915, 67236), (1098, 56030), (1170, 52582), (1220, 50427), (1293, 47580), (1586, 38790), (1724, 35685), (1830, 33618), (2155, 28548), (2196, 28015), (2340, 26291), (2379, 25860), (2586, 23790), (2745, 22412), (3172, 19395), (3660, 16809), (3879, 15860), (3965, 15516), (4310, 14274), (4758, 12930), (5172, 11895), (5490, 11206), (5603, 10980), (6465, 9516), (7137, 8620), (7758, 7930)]