2018781380

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:935

約数の個数: 192

約数和(自身を含む): 5573836800

約数和(自身を除く): 3555055420

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 49, 55, 62, 70, 77, 98, 110, 124, 140, 154, 155, 196, 217, 220, 245, 308, 310, 341, 343, 385, 434, 490, 539, 620, 682, 686, 770, 863, 868, 980, 1078, 1085, 1364, 1372, 1519, 1540, 1705, 1715, 1726, 2156, 2170, 2387, 2695, 3038, 3410, 3430, 3452, 3773, 4315, 4340, 4774, 5390, 6041, 6076, 6820, 6860, 7546, 7595, 8630, 9493, 9548, 10633, 10780, 11935, 12082, 15092, 15190, 16709, 17260, 18865, 18986, 21266, 23870, 24164, 26753, 30205, 30380, 33418, 37730, 37972, 42287, 42532, 47465, 47740, 53165, 53506, 60410, 66451, 66836, 75460, 83545, 84574, 94930, 106330, 107012, 116963, 120820, 132902, 133765, 167090, 169148, 187271, 189860, 211435, 212660, 233926, 265804, 267530, 294283, 296009, 332255, 334180, 374542, 422870, 465157, 467852, 535060, 584815, 588566, 592018, 664510, 749084, 845740, 930314, 936355, 1169630, 1177132, 1184036, 1310897, 1329020, 1471415, 1480045, 1860628, 1872710, 2059981, 2325785, 2339260, 2621794, 2942830, 2960090, 3256099, 3745420, 4119962, 4651570, 5243588, 5885660, 5920180, 6512198, 6554485, 8239924, 9176279, 9303140, 10299905, 13024396, 13108970, 14419867, 16280495, 18352558, 20599810, 26217940, 28839734, 32560990, 36705116, 41199620, 45881395, 57679468, 65121980, 72099335, 91762790, 100939069, 144198670, 183525580, 201878138, 288397340, 403756276, 504695345, 1009390690, 2018781380]

約数ペア:

[(1, 2018781380), (2, 1009390690), (4, 504695345), (5, 403756276), (7, 288397340), (10, 201878138), (11, 183525580), (14, 144198670), (20, 100939069), (22, 91762790), (28, 72099335), (31, 65121980), (35, 57679468), (44, 45881395), (49, 41199620), (55, 36705116), (62, 32560990), (70, 28839734), (77, 26217940), (98, 20599810), (110, 18352558), (124, 16280495), (140, 14419867), (154, 13108970), (155, 13024396), (196, 10299905), (217, 9303140), (220, 9176279), (245, 8239924), (308, 6554485), (310, 6512198), (341, 5920180), (343, 5885660), (385, 5243588), (434, 4651570), (490, 4119962), (539, 3745420), (620, 3256099), (682, 2960090), (686, 2942830), (770, 2621794), (863, 2339260), (868, 2325785), (980, 2059981), (1078, 1872710), (1085, 1860628), (1364, 1480045), (1372, 1471415), (1519, 1329020), (1540, 1310897), (1705, 1184036), (1715, 1177132), (1726, 1169630), (2156, 936355), (2170, 930314), (2387, 845740), (2695, 749084), (3038, 664510), (3410, 592018), (3430, 588566), (3452, 584815), (3773, 535060), (4315, 467852), (4340, 465157), (4774, 422870), (5390, 374542), (6041, 334180), (6076, 332255), (6820, 296009), (6860, 294283), (7546, 267530), (7595, 265804), (8630, 233926), (9493, 212660), (9548, 211435), (10633, 189860), (10780, 187271), (11935, 169148), (12082, 167090), (15092, 133765), (15190, 132902), (16709, 120820), (17260, 116963), (18865, 107012), (18986, 106330), (21266, 94930), (23870, 84574), (24164, 83545), (26753, 75460), (30205, 66836), (30380, 66451), (33418, 60410), (37730, 53506), (37972, 53165), (42287, 47740), (42532, 47465)]