80287280

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 193273344

約数和(自身を除く): 112986064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 131, 163, 188, 235, 262, 326, 376, 470, 524, 652, 655, 752, 815, 940, 1048, 1304, 1310, 1630, 1880, 2096, 2608, 2620, 3260, 3760, 5240, 6157, 6520, 7661, 10480, 12314, 13040, 15322, 21353, 24628, 30644, 30785, 38305, 42706, 49256, 61288, 61570, 76610, 85412, 98512, 106765, 122576, 123140, 153220, 170824, 213530, 246280, 306440, 341648, 427060, 492560, 612880, 854120, 1003591, 1708240, 2007182, 4014364, 5017955, 8028728, 10035910, 16057456, 20071820, 40143640, 80287280]

約数ペア:

[(1, 80287280), (2, 40143640), (4, 20071820), (5, 16057456), (8, 10035910), (10, 8028728), (16, 5017955), (20, 4014364), (40, 2007182), (47, 1708240), (80, 1003591), (94, 854120), (131, 612880), (163, 492560), (188, 427060), (235, 341648), (262, 306440), (326, 246280), (376, 213530), (470, 170824), (524, 153220), (652, 123140), (655, 122576), (752, 106765), (815, 98512), (940, 85412), (1048, 76610), (1304, 61570), (1310, 61288), (1630, 49256), (1880, 42706), (2096, 38305), (2608, 30785), (2620, 30644), (3260, 24628), (3760, 21353), (5240, 15322), (6157, 13040), (6520, 12314), (7661, 10480)]