311739280

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:704

約数の個数: 80

約数和(自身を含む): 743952384

約数和(自身を除く): 432213104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 127, 244, 254, 305, 488, 503, 508, 610, 635, 976, 1006, 1016, 1220, 1270, 2012, 2032, 2440, 2515, 2540, 4024, 4880, 5030, 5080, 7747, 8048, 10060, 10160, 15494, 20120, 30683, 30988, 38735, 40240, 61366, 61976, 63881, 77470, 122732, 123952, 127762, 153415, 154940, 245464, 255524, 306830, 309880, 319405, 490928, 511048, 613660, 619760, 638810, 1022096, 1227320, 1277620, 2454640, 2555240, 3896741, 5110480, 7793482, 15586964, 19483705, 31173928, 38967410, 62347856, 77934820, 155869640, 311739280]

約数ペア:

[(1, 311739280), (2, 155869640), (4, 77934820), (5, 62347856), (8, 38967410), (10, 31173928), (16, 19483705), (20, 15586964), (40, 7793482), (61, 5110480), (80, 3896741), (122, 2555240), (127, 2454640), (244, 1277620), (254, 1227320), (305, 1022096), (488, 638810), (503, 619760), (508, 613660), (610, 511048), (635, 490928), (976, 319405), (1006, 309880), (1016, 306830), (1220, 255524), (1270, 245464), (2012, 154940), (2032, 153415), (2440, 127762), (2515, 123952), (2540, 122732), (4024, 77470), (4880, 63881), (5030, 61976), (5080, 61366), (7747, 40240), (8048, 38735), (10060, 30988), (10160, 30683), (15494, 20120)]