1998543960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25583}}^1$

素因数の和:25638

約数の個数: 192

約数和(自身を含む): 7662919680

約数和(自身を除く): 5664375720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 248, 252, 279, 280, 310, 315, 360, 372, 420, 434, 465, 504, 558, 620, 630, 651, 744, 840, 868, 930, 1085, 1116, 1240, 1260, 1302, 1395, 1736, 1860, 1953, 2170, 2232, 2520, 2604, 2790, 3255, 3720, 3906, 4340, 5208, 5580, 6510, 7812, 8680, 9765, 11160, 13020, 15624, 19530, 25583, 26040, 39060, 51166, 76749, 78120, 102332, 127915, 153498, 179081, 204664, 230247, 255830, 306996, 358162, 383745, 460494, 511660, 537243, 613992, 716324, 767490, 793073, 895405, 920988, 1023320, 1074486, 1151235, 1432648, 1534980, 1586146, 1611729, 1790810, 1841976, 2148972, 2302470, 2379219, 2686215, 3069960, 3172292, 3223458, 3581620, 3965365, 4297944, 4604940, 4758438, 5372430, 5551511, 6344584, 6446916, 7137657, 7163240, 7930730, 8058645, 9209880, 9516876, 10744860, 11103022, 11896095, 12893832, 14275314, 15861460, 16117290, 16654533, 19033752, 21489720, 22206044, 23792190, 27757555, 28550628, 31722920, 32234580, 33309066, 35688285, 44412088, 47584380, 49963599, 55515110, 57101256, 64469160, 66618132, 71376570, 83272665, 95168760, 99927198, 111030220, 133236264, 142753140, 166545330, 199854396, 222060440, 249817995, 285506280, 333090660, 399708792, 499635990, 666181320, 999271980, 1998543960]

約数ペア:

[(1, 1998543960), (2, 999271980), (3, 666181320), (4, 499635990), (5, 399708792), (6, 333090660), (7, 285506280), (8, 249817995), (9, 222060440), (10, 199854396), (12, 166545330), (14, 142753140), (15, 133236264), (18, 111030220), (20, 99927198), (21, 95168760), (24, 83272665), (28, 71376570), (30, 66618132), (31, 64469160), (35, 57101256), (36, 55515110), (40, 49963599), (42, 47584380), (45, 44412088), (56, 35688285), (60, 33309066), (62, 32234580), (63, 31722920), (70, 28550628), (72, 27757555), (84, 23792190), (90, 22206044), (93, 21489720), (105, 19033752), (120, 16654533), (124, 16117290), (126, 15861460), (140, 14275314), (155, 12893832), (168, 11896095), (180, 11103022), (186, 10744860), (210, 9516876), (217, 9209880), (248, 8058645), (252, 7930730), (279, 7163240), (280, 7137657), (310, 6446916), (315, 6344584), (360, 5551511), (372, 5372430), (420, 4758438), (434, 4604940), (465, 4297944), (504, 3965365), (558, 3581620), (620, 3223458), (630, 3172292), (651, 3069960), (744, 2686215), (840, 2379219), (868, 2302470), (930, 2148972), (1085, 1841976), (1116, 1790810), (1240, 1611729), (1260, 1586146), (1302, 1534980), (1395, 1432648), (1736, 1151235), (1860, 1074486), (1953, 1023320), (2170, 920988), (2232, 895405), (2520, 793073), (2604, 767490), (2790, 716324), (3255, 613992), (3720, 537243), (3906, 511660), (4340, 460494), (5208, 383745), (5580, 358162), (6510, 306996), (7812, 255830), (8680, 230247), (9765, 204664), (11160, 179081), (13020, 153498), (15624, 127915), (19530, 102332), (25583, 78120), (26040, 76749), (39060, 51166)]