20881406520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{193993}}^1$

素因数の和:194046

約数の個数: 192

約数和(自身を含む): 76262921280

約数和(自身を除く): 55381514760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 23, 24, 26, 30, 36, 39, 40, 45, 46, 52, 60, 65, 69, 72, 78, 90, 92, 104, 115, 117, 120, 130, 138, 156, 180, 184, 195, 207, 230, 234, 260, 276, 299, 312, 345, 360, 390, 414, 460, 468, 520, 552, 585, 598, 690, 780, 828, 897, 920, 936, 1035, 1170, 1196, 1380, 1495, 1560, 1656, 1794, 2070, 2340, 2392, 2691, 2760, 2990, 3588, 4140, 4485, 4680, 5382, 5980, 7176, 8280, 8970, 10764, 11960, 13455, 17940, 21528, 26910, 35880, 53820, 107640, 193993, 387986, 581979, 775972, 969965, 1163958, 1551944, 1745937, 1939930, 2327916, 2521909, 2909895, 3491874, 3879860, 4461839, 4655832, 5043818, 5819790, 6983748, 7565727, 7759720, 8729685, 8923678, 10087636, 11639580, 12609545, 13385517, 13967496, 15131454, 17459370, 17847356, 20175272, 22309195, 22697181, 23279160, 25219090, 26771034, 30262908, 34918740, 35694712, 37828635, 40156551, 44618390, 45394362, 50438180, 53542068, 58003907, 60525816, 66927585, 69837480, 75657270, 80313102, 89236780, 90788724, 100876360, 107084136, 113485905, 116007814, 133855170, 151314540, 160626204, 174011721, 178473560, 181577448, 200782755, 226971810, 232015628, 267710340, 290019535, 302629080, 321252408, 348023442, 401565510, 453943620, 464031256, 522035163, 535420680, 580039070, 696046884, 803131020, 870058605, 907887240, 1044070326, 1160078140, 1392093768, 1606262040, 1740117210, 2088140652, 2320156280, 2610175815, 3480234420, 4176281304, 5220351630, 6960468840, 10440703260, 20881406520]

約数ペア:

[(1, 20881406520), (2, 10440703260), (3, 6960468840), (4, 5220351630), (5, 4176281304), (6, 3480234420), (8, 2610175815), (9, 2320156280), (10, 2088140652), (12, 1740117210), (13, 1606262040), (15, 1392093768), (18, 1160078140), (20, 1044070326), (23, 907887240), (24, 870058605), (26, 803131020), (30, 696046884), (36, 580039070), (39, 535420680), (40, 522035163), (45, 464031256), (46, 453943620), (52, 401565510), (60, 348023442), (65, 321252408), (69, 302629080), (72, 290019535), (78, 267710340), (90, 232015628), (92, 226971810), (104, 200782755), (115, 181577448), (117, 178473560), (120, 174011721), (130, 160626204), (138, 151314540), (156, 133855170), (180, 116007814), (184, 113485905), (195, 107084136), (207, 100876360), (230, 90788724), (234, 89236780), (260, 80313102), (276, 75657270), (299, 69837480), (312, 66927585), (345, 60525816), (360, 58003907), (390, 53542068), (414, 50438180), (460, 45394362), (468, 44618390), (520, 40156551), (552, 37828635), (585, 35694712), (598, 34918740), (690, 30262908), (780, 26771034), (828, 25219090), (897, 23279160), (920, 22697181), (936, 22309195), (1035, 20175272), (1170, 17847356), (1196, 17459370), (1380, 15131454), (1495, 13967496), (1560, 13385517), (1656, 12609545), (1794, 11639580), (2070, 10087636), (2340, 8923678), (2392, 8729685), (2691, 7759720), (2760, 7565727), (2990, 6983748), (3588, 5819790), (4140, 5043818), (4485, 4655832), (4680, 4461839), (5382, 3879860), (5980, 3491874), (7176, 2909895), (8280, 2521909), (8970, 2327916), (10764, 1939930), (11960, 1745937), (13455, 1551944), (17940, 1163958), (21528, 969965), (26910, 775972), (35880, 581979), (53820, 387986), (107640, 193993)]