20527500

素因数分解:

$2^2\times 3^1\times 5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:74

約数の個数: 240

約数和(自身を含む): 75575808

約数和(自身を除く): 55048308

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 23, 25, 28, 30, 34, 35, 42, 46, 50, 51, 60, 68, 69, 70, 75, 84, 85, 92, 100, 102, 105, 115, 119, 125, 138, 140, 150, 161, 170, 175, 204, 210, 230, 238, 250, 255, 276, 300, 322, 340, 345, 350, 357, 375, 391, 420, 425, 460, 476, 483, 500, 510, 525, 575, 595, 625, 644, 690, 700, 714, 750, 782, 805, 850, 875, 966, 1020, 1050, 1150, 1173, 1190, 1250, 1275, 1380, 1428, 1500, 1564, 1610, 1700, 1725, 1750, 1785, 1875, 1932, 1955, 2100, 2125, 2300, 2346, 2380, 2415, 2500, 2550, 2625, 2737, 2875, 2975, 3220, 3450, 3500, 3570, 3750, 3910, 4025, 4250, 4375, 4692, 4830, 5100, 5250, 5474, 5750, 5865, 5950, 6375, 6900, 7140, 7500, 7820, 8050, 8211, 8500, 8625, 8750, 8925, 9660, 9775, 10500, 10625, 10948, 11500, 11730, 11900, 12075, 12750, 13125, 13685, 14375, 14875, 16100, 16422, 17250, 17500, 17850, 19550, 20125, 21250, 23460, 24150, 25500, 26250, 27370, 28750, 29325, 29750, 31875, 32844, 34500, 35700, 39100, 40250, 41055, 42500, 43125, 44625, 48300, 48875, 52500, 54740, 57500, 58650, 59500, 60375, 63750, 68425, 74375, 80500, 82110, 86250, 89250, 97750, 100625, 117300, 120750, 127500, 136850, 146625, 148750, 164220, 172500, 178500, 195500, 201250, 205275, 223125, 241500, 244375, 273700, 293250, 297500, 301875, 342125, 402500, 410550, 446250, 488750, 586500, 603750, 684250, 733125, 821100, 892500, 977500, 1026375, 1207500, 1368500, 1466250, 1710625, 2052750, 2932500, 3421250, 4105500, 5131875, 6842500, 10263750, 20527500]

約数ペア:

[(1, 20527500), (2, 10263750), (3, 6842500), (4, 5131875), (5, 4105500), (6, 3421250), (7, 2932500), (10, 2052750), (12, 1710625), (14, 1466250), (15, 1368500), (17, 1207500), (20, 1026375), (21, 977500), (23, 892500), (25, 821100), (28, 733125), (30, 684250), (34, 603750), (35, 586500), (42, 488750), (46, 446250), (50, 410550), (51, 402500), (60, 342125), (68, 301875), (69, 297500), (70, 293250), (75, 273700), (84, 244375), (85, 241500), (92, 223125), (100, 205275), (102, 201250), (105, 195500), (115, 178500), (119, 172500), (125, 164220), (138, 148750), (140, 146625), (150, 136850), (161, 127500), (170, 120750), (175, 117300), (204, 100625), (210, 97750), (230, 89250), (238, 86250), (250, 82110), (255, 80500), (276, 74375), (300, 68425), (322, 63750), (340, 60375), (345, 59500), (350, 58650), (357, 57500), (375, 54740), (391, 52500), (420, 48875), (425, 48300), (460, 44625), (476, 43125), (483, 42500), (500, 41055), (510, 40250), (525, 39100), (575, 35700), (595, 34500), (625, 32844), (644, 31875), (690, 29750), (700, 29325), (714, 28750), (750, 27370), (782, 26250), (805, 25500), (850, 24150), (875, 23460), (966, 21250), (1020, 20125), (1050, 19550), (1150, 17850), (1173, 17500), (1190, 17250), (1250, 16422), (1275, 16100), (1380, 14875), (1428, 14375), (1500, 13685), (1564, 13125), (1610, 12750), (1700, 12075), (1725, 11900), (1750, 11730), (1785, 11500), (1875, 10948), (1932, 10625), (1955, 10500), (2100, 9775), (2125, 9660), (2300, 8925), (2346, 8750), (2380, 8625), (2415, 8500), (2500, 8211), (2550, 8050), (2625, 7820), (2737, 7500), (2875, 7140), (2975, 6900), (3220, 6375), (3450, 5950), (3500, 5865), (3570, 5750), (3750, 5474), (3910, 5250), (4025, 5100), (4250, 4830), (4375, 4692)]