18734580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 144

約数和(自身を含む): 60999120

約数和(自身を除く): 42264540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 37, 45, 58, 60, 74, 87, 90, 97, 111, 116, 145, 148, 174, 180, 185, 194, 222, 261, 290, 291, 333, 348, 370, 388, 435, 444, 485, 522, 555, 580, 582, 666, 740, 870, 873, 970, 1044, 1073, 1110, 1164, 1305, 1332, 1455, 1665, 1740, 1746, 1940, 2146, 2220, 2610, 2813, 2910, 3219, 3330, 3492, 3589, 4292, 4365, 5220, 5365, 5626, 5820, 6438, 6660, 7178, 8439, 8730, 9657, 10730, 10767, 11252, 12876, 14065, 14356, 16095, 16878, 17460, 17945, 19314, 21460, 21534, 25317, 28130, 32190, 32301, 33756, 35890, 38628, 42195, 43068, 48285, 50634, 53835, 56260, 64380, 64602, 71780, 84390, 96570, 101268, 104081, 107670, 126585, 129204, 161505, 168780, 193140, 208162, 215340, 253170, 312243, 323010, 416324, 506340, 520405, 624486, 646020, 936729, 1040810, 1248972, 1561215, 1873458, 2081620, 3122430, 3746916, 4683645, 6244860, 9367290, 18734580]

約数ペア:

[(1, 18734580), (2, 9367290), (3, 6244860), (4, 4683645), (5, 3746916), (6, 3122430), (9, 2081620), (10, 1873458), (12, 1561215), (15, 1248972), (18, 1040810), (20, 936729), (29, 646020), (30, 624486), (36, 520405), (37, 506340), (45, 416324), (58, 323010), (60, 312243), (74, 253170), (87, 215340), (90, 208162), (97, 193140), (111, 168780), (116, 161505), (145, 129204), (148, 126585), (174, 107670), (180, 104081), (185, 101268), (194, 96570), (222, 84390), (261, 71780), (290, 64602), (291, 64380), (333, 56260), (348, 53835), (370, 50634), (388, 48285), (435, 43068), (444, 42195), (485, 38628), (522, 35890), (555, 33756), (580, 32301), (582, 32190), (666, 28130), (740, 25317), (870, 21534), (873, 21460), (970, 19314), (1044, 17945), (1073, 17460), (1110, 16878), (1164, 16095), (1305, 14356), (1332, 14065), (1455, 12876), (1665, 11252), (1740, 10767), (1746, 10730), (1940, 9657), (2146, 8730), (2220, 8439), (2610, 7178), (2813, 6660), (2910, 6438), (3219, 5820), (3330, 5626), (3492, 5365), (3589, 5220), (4292, 4365)]