81894750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:867

約数の個数: 128

約数和(自身を含む): 246205440

約数和(自身を除く): 164310690

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 25, 30, 35, 38, 42, 50, 57, 70, 75, 95, 105, 114, 125, 133, 150, 175, 190, 210, 250, 266, 285, 350, 375, 399, 475, 525, 570, 665, 750, 798, 821, 875, 950, 1050, 1330, 1425, 1642, 1750, 1995, 2375, 2463, 2625, 2850, 3325, 3990, 4105, 4750, 4926, 5250, 5747, 6650, 7125, 8210, 9975, 11494, 12315, 14250, 15599, 16625, 17241, 19950, 20525, 24630, 28735, 31198, 33250, 34482, 41050, 46797, 49875, 57470, 61575, 77995, 86205, 93594, 99750, 102625, 109193, 123150, 143675, 155990, 172410, 205250, 218386, 233985, 287350, 307875, 327579, 389975, 431025, 467970, 545965, 615750, 655158, 718375, 779950, 862050, 1091930, 1169925, 1436750, 1637895, 1949875, 2155125, 2339850, 2729825, 3275790, 3899750, 4310250, 5459650, 5849625, 8189475, 11699250, 13649125, 16378950, 27298250, 40947375, 81894750]

約数ペア:

[(1, 81894750), (2, 40947375), (3, 27298250), (5, 16378950), (6, 13649125), (7, 11699250), (10, 8189475), (14, 5849625), (15, 5459650), (19, 4310250), (21, 3899750), (25, 3275790), (30, 2729825), (35, 2339850), (38, 2155125), (42, 1949875), (50, 1637895), (57, 1436750), (70, 1169925), (75, 1091930), (95, 862050), (105, 779950), (114, 718375), (125, 655158), (133, 615750), (150, 545965), (175, 467970), (190, 431025), (210, 389975), (250, 327579), (266, 307875), (285, 287350), (350, 233985), (375, 218386), (399, 205250), (475, 172410), (525, 155990), (570, 143675), (665, 123150), (750, 109193), (798, 102625), (821, 99750), (875, 93594), (950, 86205), (1050, 77995), (1330, 61575), (1425, 57470), (1642, 49875), (1750, 46797), (1995, 41050), (2375, 34482), (2463, 33250), (2625, 31198), (2850, 28735), (3325, 24630), (3990, 20525), (4105, 19950), (4750, 17241), (4926, 16625), (5250, 15599), (5747, 14250), (6650, 12315), (7125, 11494), (8210, 9975)]