20081517280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^3\times {\mathrm{383}}^1$

素因数の和:502

約数の個数: 192

約数和(自身を含む): 53620310016

約数和(自身を除く): 33538792736

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 341, 352, 383, 440, 496, 620, 682, 766, 880, 961, 992, 1240, 1364, 1532, 1705, 1760, 1915, 1922, 2480, 2728, 3064, 3410, 3830, 3844, 4213, 4805, 4960, 5456, 6128, 6820, 7660, 7688, 8426, 9610, 10571, 10912, 11873, 12256, 13640, 15320, 15376, 16852, 19220, 21065, 21142, 23746, 27280, 29791, 30640, 30752, 33704, 38440, 42130, 42284, 47492, 52855, 54560, 59365, 59582, 61280, 67408, 76880, 84260, 84568, 94984, 105710, 118730, 119164, 130603, 134816, 148955, 153760, 168520, 169136, 189968, 211420, 237460, 238328, 261206, 297910, 327701, 337040, 338272, 368063, 379936, 422840, 474920, 476656, 522412, 595820, 653015, 655402, 674080, 736126, 845680, 949840, 953312, 1044824, 1191640, 1306030, 1310804, 1472252, 1638505, 1691360, 1840315, 1899680, 2089648, 2383280, 2612060, 2621608, 2944504, 3277010, 3680630, 4048693, 4179296, 4766560, 5224120, 5243216, 5889008, 6554020, 7361260, 8097386, 10448240, 10486432, 11409953, 11778016, 13108040, 14722520, 16194772, 20243465, 20896480, 22819906, 26216080, 29445040, 32389544, 40486930, 45639812, 52432160, 57049765, 58890080, 64779088, 80973860, 91279624, 114099530, 125509483, 129558176, 161947720, 182559248, 228199060, 251018966, 323895440, 365118496, 456398120, 502037932, 627547415, 647790880, 912796240, 1004075864, 1255094830, 1825592480, 2008151728, 2510189660, 4016303456, 5020379320, 10040758640, 20081517280]

約数ペア:

[(1, 20081517280), (2, 10040758640), (4, 5020379320), (5, 4016303456), (8, 2510189660), (10, 2008151728), (11, 1825592480), (16, 1255094830), (20, 1004075864), (22, 912796240), (31, 647790880), (32, 627547415), (40, 502037932), (44, 456398120), (55, 365118496), (62, 323895440), (80, 251018966), (88, 228199060), (110, 182559248), (124, 161947720), (155, 129558176), (160, 125509483), (176, 114099530), (220, 91279624), (248, 80973860), (310, 64779088), (341, 58890080), (352, 57049765), (383, 52432160), (440, 45639812), (496, 40486930), (620, 32389544), (682, 29445040), (766, 26216080), (880, 22819906), (961, 20896480), (992, 20243465), (1240, 16194772), (1364, 14722520), (1532, 13108040), (1705, 11778016), (1760, 11409953), (1915, 10486432), (1922, 10448240), (2480, 8097386), (2728, 7361260), (3064, 6554020), (3410, 5889008), (3830, 5243216), (3844, 5224120), (4213, 4766560), (4805, 4179296), (4960, 4048693), (5456, 3680630), (6128, 3277010), (6820, 2944504), (7660, 2621608), (7688, 2612060), (8426, 2383280), (9610, 2089648), (10571, 1899680), (10912, 1840315), (11873, 1691360), (12256, 1638505), (13640, 1472252), (15320, 1310804), (15376, 1306030), (16852, 1191640), (19220, 1044824), (21065, 953312), (21142, 949840), (23746, 845680), (27280, 736126), (29791, 674080), (30640, 655402), (30752, 653015), (33704, 595820), (38440, 522412), (42130, 476656), (42284, 474920), (47492, 422840), (52855, 379936), (54560, 368063), (59365, 338272), (59582, 337040), (61280, 327701), (67408, 297910), (76880, 261206), (84260, 238328), (84568, 237460), (94984, 211420), (105710, 189968), (118730, 169136), (119164, 168520), (130603, 153760), (134816, 148955)]