2009654320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{77773}}^1$

素因数の和:77822

約数の個数: 80

約数和(自身を含む): 5207747040

約数和(自身を除く): 3198092720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 2584, 3230, 5168, 6460, 12920, 25840, 77773, 155546, 311092, 388865, 622184, 777730, 1244368, 1322141, 1477687, 1555460, 2644282, 2955374, 3110920, 5288564, 5910748, 6221840, 6610705, 7388435, 10577128, 11821496, 13221410, 14776870, 21154256, 23642992, 25120679, 26442820, 29553740, 50241358, 52885640, 59107480, 100482716, 105771280, 118214960, 125603395, 200965432, 251206790, 401930864, 502413580, 1004827160, 2009654320]

約数ペア:

[(1, 2009654320), (2, 1004827160), (4, 502413580), (5, 401930864), (8, 251206790), (10, 200965432), (16, 125603395), (17, 118214960), (19, 105771280), (20, 100482716), (34, 59107480), (38, 52885640), (40, 50241358), (68, 29553740), (76, 26442820), (80, 25120679), (85, 23642992), (95, 21154256), (136, 14776870), (152, 13221410), (170, 11821496), (190, 10577128), (272, 7388435), (304, 6610705), (323, 6221840), (340, 5910748), (380, 5288564), (646, 3110920), (680, 2955374), (760, 2644282), (1292, 1555460), (1360, 1477687), (1520, 1322141), (1615, 1244368), (2584, 777730), (3230, 622184), (5168, 388865), (6460, 311092), (12920, 155546), (25840, 77773)]