7851280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:304

約数の個数: 80

約数和(自身を含む): 20248704

約数和(自身を除く): 12397424

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 251, 272, 340, 368, 391, 460, 502, 680, 782, 920, 1004, 1255, 1360, 1564, 1840, 1955, 2008, 2510, 3128, 3910, 4016, 4267, 5020, 5773, 6256, 7820, 8534, 10040, 11546, 15640, 17068, 20080, 21335, 23092, 28865, 31280, 34136, 42670, 46184, 57730, 68272, 85340, 92368, 98141, 115460, 170680, 196282, 230920, 341360, 392564, 461840, 490705, 785128, 981410, 1570256, 1962820, 3925640, 7851280]

約数ペア:

[(1, 7851280), (2, 3925640), (4, 1962820), (5, 1570256), (8, 981410), (10, 785128), (16, 490705), (17, 461840), (20, 392564), (23, 341360), (34, 230920), (40, 196282), (46, 170680), (68, 115460), (80, 98141), (85, 92368), (92, 85340), (115, 68272), (136, 57730), (170, 46184), (184, 42670), (230, 34136), (251, 31280), (272, 28865), (340, 23092), (368, 21335), (391, 20080), (460, 17068), (502, 15640), (680, 11546), (782, 10040), (920, 8534), (1004, 7820), (1255, 6256), (1360, 5773), (1564, 5020), (1840, 4267), (1955, 4016), (2008, 3910), (2510, 3128)]