217275280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1109}}^1$

素因数の和:1232

約数の個数: 80

約数和(自身を含む): 528537600

約数和(自身を除く): 311262320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 248, 310, 316, 395, 496, 620, 632, 790, 1109, 1240, 1264, 1580, 2218, 2449, 2480, 3160, 4436, 4898, 5545, 6320, 8872, 9796, 11090, 12245, 17744, 19592, 22180, 24490, 34379, 39184, 44360, 48980, 68758, 87611, 88720, 97960, 137516, 171895, 175222, 195920, 275032, 343790, 350444, 438055, 550064, 687580, 700888, 876110, 1375160, 1401776, 1752220, 2715941, 2750320, 3504440, 5431882, 7008880, 10863764, 13579705, 21727528, 27159410, 43455056, 54318820, 108637640, 217275280]

約数ペア:

[(1, 217275280), (2, 108637640), (4, 54318820), (5, 43455056), (8, 27159410), (10, 21727528), (16, 13579705), (20, 10863764), (31, 7008880), (40, 5431882), (62, 3504440), (79, 2750320), (80, 2715941), (124, 1752220), (155, 1401776), (158, 1375160), (248, 876110), (310, 700888), (316, 687580), (395, 550064), (496, 438055), (620, 350444), (632, 343790), (790, 275032), (1109, 195920), (1240, 175222), (1264, 171895), (1580, 137516), (2218, 97960), (2449, 88720), (2480, 87611), (3160, 68758), (4436, 48980), (4898, 44360), (5545, 39184), (6320, 34379), (8872, 24490), (9796, 22180), (11090, 19592), (12245, 17744)]