31578390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 90288000

約数和(自身を除く): 58709610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 37, 45, 54, 58, 74, 87, 90, 109, 111, 135, 145, 174, 185, 218, 222, 261, 270, 290, 327, 333, 370, 435, 522, 545, 555, 654, 666, 783, 870, 981, 999, 1073, 1090, 1110, 1305, 1566, 1635, 1665, 1962, 1998, 2146, 2610, 2943, 3161, 3219, 3270, 3330, 3915, 4033, 4905, 4995, 5365, 5886, 6322, 6438, 7830, 8066, 9483, 9657, 9810, 9990, 10730, 12099, 14715, 15805, 16095, 18966, 19314, 20165, 24198, 28449, 28971, 29430, 31610, 32190, 36297, 40330, 47415, 48285, 56898, 57942, 60495, 72594, 85347, 94830, 96570, 108891, 116957, 120990, 142245, 144855, 170694, 181485, 217782, 233914, 284490, 289710, 350871, 362970, 426735, 544455, 584785, 701742, 853470, 1052613, 1088910, 1169570, 1754355, 2105226, 3157839, 3508710, 5263065, 6315678, 10526130, 15789195, 31578390]

約数ペア:

[(1, 31578390), (2, 15789195), (3, 10526130), (5, 6315678), (6, 5263065), (9, 3508710), (10, 3157839), (15, 2105226), (18, 1754355), (27, 1169570), (29, 1088910), (30, 1052613), (37, 853470), (45, 701742), (54, 584785), (58, 544455), (74, 426735), (87, 362970), (90, 350871), (109, 289710), (111, 284490), (135, 233914), (145, 217782), (174, 181485), (185, 170694), (218, 144855), (222, 142245), (261, 120990), (270, 116957), (290, 108891), (327, 96570), (333, 94830), (370, 85347), (435, 72594), (522, 60495), (545, 57942), (555, 56898), (654, 48285), (666, 47415), (783, 40330), (870, 36297), (981, 32190), (999, 31610), (1073, 29430), (1090, 28971), (1110, 28449), (1305, 24198), (1566, 20165), (1635, 19314), (1665, 18966), (1962, 16095), (1998, 15805), (2146, 14715), (2610, 12099), (2943, 10730), (3161, 9990), (3219, 9810), (3270, 9657), (3330, 9483), (3915, 8066), (4033, 7830), (4905, 6438), (4995, 6322), (5365, 5886)]