321591420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:604

約数の個数: 144

約数和(自身を含む): 1013332320

約数和(自身を除く): 691740900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 109, 111, 148, 180, 185, 218, 222, 327, 333, 370, 436, 443, 444, 545, 555, 654, 666, 740, 886, 981, 1090, 1110, 1308, 1329, 1332, 1635, 1665, 1772, 1962, 2180, 2215, 2220, 2658, 3270, 3330, 3924, 3987, 4033, 4430, 4905, 5316, 6540, 6645, 6660, 7974, 8066, 8860, 9810, 12099, 13290, 15948, 16132, 16391, 19620, 19935, 20165, 24198, 26580, 32782, 36297, 39870, 40330, 48287, 48396, 49173, 60495, 65564, 72594, 79740, 80660, 81955, 96574, 98346, 120990, 144861, 145188, 147519, 163910, 181485, 193148, 196692, 241435, 241980, 245865, 289722, 295038, 327820, 362970, 434583, 482870, 491730, 579444, 590076, 724305, 725940, 737595, 869166, 965740, 983460, 1448610, 1475190, 1738332, 1786619, 2172915, 2897220, 2950380, 3573238, 4345830, 5359857, 7146476, 8691660, 8933095, 10719714, 16079571, 17866190, 21439428, 26799285, 32159142, 35732380, 53598570, 64318284, 80397855, 107197140, 160795710, 321591420]

約数ペア:

[(1, 321591420), (2, 160795710), (3, 107197140), (4, 80397855), (5, 64318284), (6, 53598570), (9, 35732380), (10, 32159142), (12, 26799285), (15, 21439428), (18, 17866190), (20, 16079571), (30, 10719714), (36, 8933095), (37, 8691660), (45, 7146476), (60, 5359857), (74, 4345830), (90, 3573238), (109, 2950380), (111, 2897220), (148, 2172915), (180, 1786619), (185, 1738332), (218, 1475190), (222, 1448610), (327, 983460), (333, 965740), (370, 869166), (436, 737595), (443, 725940), (444, 724305), (545, 590076), (555, 579444), (654, 491730), (666, 482870), (740, 434583), (886, 362970), (981, 327820), (1090, 295038), (1110, 289722), (1308, 245865), (1329, 241980), (1332, 241435), (1635, 196692), (1665, 193148), (1772, 181485), (1962, 163910), (2180, 147519), (2215, 145188), (2220, 144861), (2658, 120990), (3270, 98346), (3330, 96574), (3924, 81955), (3987, 80660), (4033, 79740), (4430, 72594), (4905, 65564), (5316, 60495), (6540, 49173), (6645, 48396), (6660, 48287), (7974, 40330), (8066, 39870), (8860, 36297), (9810, 32782), (12099, 26580), (13290, 24198), (15948, 20165), (16132, 19935), (16391, 19620)]