19365040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 49416480

約数和(自身を除く): 30051440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 491, 493, 580, 680, 982, 986, 1160, 1360, 1964, 1972, 2320, 2455, 2465, 3928, 3944, 4910, 4930, 7856, 7888, 8347, 9820, 9860, 14239, 16694, 19640, 19720, 28478, 33388, 39280, 39440, 41735, 56956, 66776, 71195, 83470, 113912, 133552, 142390, 166940, 227824, 242063, 284780, 333880, 484126, 569560, 667760, 968252, 1139120, 1210315, 1936504, 2420630, 3873008, 4841260, 9682520, 19365040]

約数ペア:

[(1, 19365040), (2, 9682520), (4, 4841260), (5, 3873008), (8, 2420630), (10, 1936504), (16, 1210315), (17, 1139120), (20, 968252), (29, 667760), (34, 569560), (40, 484126), (58, 333880), (68, 284780), (80, 242063), (85, 227824), (116, 166940), (136, 142390), (145, 133552), (170, 113912), (232, 83470), (272, 71195), (290, 66776), (340, 56956), (464, 41735), (491, 39440), (493, 39280), (580, 33388), (680, 28478), (982, 19720), (986, 19640), (1160, 16694), (1360, 14239), (1964, 9860), (1972, 9820), (2320, 8347), (2455, 7888), (2465, 7856), (3928, 4930), (3944, 4910)]