1565256980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1999}}^1$

素因数の和:2086

約数の個数: 144

約数和(自身を含む): 4136832000

約数和(自身を除く): 2571575020

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 47, 49, 68, 70, 85, 94, 98, 119, 140, 170, 188, 196, 235, 238, 245, 329, 340, 470, 476, 490, 595, 658, 799, 833, 940, 980, 1190, 1316, 1598, 1645, 1666, 1999, 2303, 2380, 3196, 3290, 3332, 3995, 3998, 4165, 4606, 5593, 6580, 7990, 7996, 8330, 9212, 9995, 11186, 11515, 13993, 15980, 16660, 19990, 22372, 23030, 27965, 27986, 33983, 39151, 39980, 46060, 55930, 55972, 67966, 69965, 78302, 93953, 97951, 111860, 135932, 139930, 156604, 169915, 187906, 195755, 195902, 237881, 279860, 339830, 375812, 391510, 391804, 469765, 475762, 489755, 657671, 679660, 783020, 939530, 951524, 979510, 1189405, 1315342, 1597201, 1665167, 1879060, 1959020, 2378810, 2630684, 3194402, 3288355, 3330334, 4603697, 4757620, 6388804, 6576710, 6660668, 7986005, 8325835, 9207394, 11180407, 13153420, 15972010, 16651670, 18414788, 22360814, 23018485, 31944020, 33303340, 44721628, 46036970, 55902035, 78262849, 92073940, 111804070, 156525698, 223608140, 313051396, 391314245, 782628490, 1565256980]

約数ペア:

[(1, 1565256980), (2, 782628490), (4, 391314245), (5, 313051396), (7, 223608140), (10, 156525698), (14, 111804070), (17, 92073940), (20, 78262849), (28, 55902035), (34, 46036970), (35, 44721628), (47, 33303340), (49, 31944020), (68, 23018485), (70, 22360814), (85, 18414788), (94, 16651670), (98, 15972010), (119, 13153420), (140, 11180407), (170, 9207394), (188, 8325835), (196, 7986005), (235, 6660668), (238, 6576710), (245, 6388804), (329, 4757620), (340, 4603697), (470, 3330334), (476, 3288355), (490, 3194402), (595, 2630684), (658, 2378810), (799, 1959020), (833, 1879060), (940, 1665167), (980, 1597201), (1190, 1315342), (1316, 1189405), (1598, 979510), (1645, 951524), (1666, 939530), (1999, 783020), (2303, 679660), (2380, 657671), (3196, 489755), (3290, 475762), (3332, 469765), (3995, 391804), (3998, 391510), (4165, 375812), (4606, 339830), (5593, 279860), (6580, 237881), (7990, 195902), (7996, 195755), (8330, 187906), (9212, 169915), (9995, 156604), (11186, 139930), (11515, 135932), (13993, 111860), (15980, 97951), (16660, 93953), (19990, 78302), (22372, 69965), (23030, 67966), (27965, 55972), (27986, 55930), (33983, 46060), (39151, 39980)]