31146320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:724

約数の個数: 80

約数和(自身を含む): 78804480

約数和(自身を除く): 47658160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 661, 760, 1178, 1240, 1322, 1520, 2356, 2480, 2644, 2945, 3305, 4712, 5288, 5890, 6610, 9424, 10576, 11780, 12559, 13220, 20491, 23560, 25118, 26440, 40982, 47120, 50236, 52880, 62795, 81964, 100472, 102455, 125590, 163928, 200944, 204910, 251180, 327856, 389329, 409820, 502360, 778658, 819640, 1004720, 1557316, 1639280, 1946645, 3114632, 3893290, 6229264, 7786580, 15573160, 31146320]

約数ペア:

[(1, 31146320), (2, 15573160), (4, 7786580), (5, 6229264), (8, 3893290), (10, 3114632), (16, 1946645), (19, 1639280), (20, 1557316), (31, 1004720), (38, 819640), (40, 778658), (62, 502360), (76, 409820), (80, 389329), (95, 327856), (124, 251180), (152, 204910), (155, 200944), (190, 163928), (248, 125590), (304, 102455), (310, 100472), (380, 81964), (496, 62795), (589, 52880), (620, 50236), (661, 47120), (760, 40982), (1178, 26440), (1240, 25118), (1322, 23560), (1520, 20491), (2356, 13220), (2480, 12559), (2644, 11780), (2945, 10576), (3305, 9424), (4712, 6610), (5288, 5890)]