20170771640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{2579}}^1$

素因数の和:2901

約数の個数: 128

約数和(自身を含む): 49152096000

約数和(自身を除く): 28981324360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 251, 328, 380, 410, 502, 760, 779, 820, 1004, 1255, 1558, 1640, 2008, 2510, 2579, 3116, 3895, 4769, 5020, 5158, 6232, 7790, 9538, 10040, 10291, 10316, 12895, 15580, 19076, 20582, 20632, 23845, 25790, 31160, 38152, 41164, 47690, 49001, 51455, 51580, 82328, 95380, 98002, 102910, 103160, 105739, 190760, 195529, 196004, 205820, 211478, 245005, 391058, 392008, 411640, 422956, 490010, 528695, 647329, 782116, 845912, 977645, 980020, 1057390, 1294658, 1564232, 1955290, 1960040, 2009041, 2114780, 2589316, 3236645, 3910580, 4018082, 4229560, 5178632, 6473290, 7821160, 8036164, 10045205, 12299251, 12946580, 16072328, 20090410, 24598502, 25893160, 26540489, 40180820, 49197004, 53080978, 61496255, 80361640, 98394008, 106161956, 122992510, 132702445, 212323912, 245985020, 265404890, 491970040, 504269291, 530809780, 1008538582, 1061619560, 2017077164, 2521346455, 4034154328, 5042692910, 10085385820, 20170771640]

約数ペア:

[(1, 20170771640), (2, 10085385820), (4, 5042692910), (5, 4034154328), (8, 2521346455), (10, 2017077164), (19, 1061619560), (20, 1008538582), (38, 530809780), (40, 504269291), (41, 491970040), (76, 265404890), (82, 245985020), (95, 212323912), (152, 132702445), (164, 122992510), (190, 106161956), (205, 98394008), (251, 80361640), (328, 61496255), (380, 53080978), (410, 49197004), (502, 40180820), (760, 26540489), (779, 25893160), (820, 24598502), (1004, 20090410), (1255, 16072328), (1558, 12946580), (1640, 12299251), (2008, 10045205), (2510, 8036164), (2579, 7821160), (3116, 6473290), (3895, 5178632), (4769, 4229560), (5020, 4018082), (5158, 3910580), (6232, 3236645), (7790, 2589316), (9538, 2114780), (10040, 2009041), (10291, 1960040), (10316, 1955290), (12895, 1564232), (15580, 1294658), (19076, 1057390), (20582, 980020), (20632, 977645), (23845, 845912), (25790, 782116), (31160, 647329), (38152, 528695), (41164, 490010), (47690, 422956), (49001, 411640), (51455, 392008), (51580, 391058), (82328, 245005), (95380, 211478), (98002, 205820), (102910, 196004), (103160, 195529), (105739, 190760)]