645750

素因数分解:

$2^1\times 3^2\times 5^3\times 7^1\times {\mathrm{41}}^1$

素因数の和:71

約数の個数: 96

約数和(自身を含む): 2044224

約数和(自身を除く): 1398474

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 41, 42, 45, 50, 63, 70, 75, 82, 90, 105, 123, 125, 126, 150, 175, 205, 210, 225, 246, 250, 287, 315, 350, 369, 375, 410, 450, 525, 574, 615, 630, 738, 750, 861, 875, 1025, 1050, 1125, 1230, 1435, 1575, 1722, 1750, 1845, 2050, 2250, 2583, 2625, 2870, 3075, 3150, 3690, 4305, 5125, 5166, 5250, 6150, 7175, 7875, 8610, 9225, 10250, 12915, 14350, 15375, 15750, 18450, 21525, 25830, 30750, 35875, 43050, 46125, 64575, 71750, 92250, 107625, 129150, 215250, 322875, 645750]

約数ペア:

[(1, 645750), (2, 322875), (3, 215250), (5, 129150), (6, 107625), (7, 92250), (9, 71750), (10, 64575), (14, 46125), (15, 43050), (18, 35875), (21, 30750), (25, 25830), (30, 21525), (35, 18450), (41, 15750), (42, 15375), (45, 14350), (50, 12915), (63, 10250), (70, 9225), (75, 8610), (82, 7875), (90, 7175), (105, 6150), (123, 5250), (125, 5166), (126, 5125), (150, 4305), (175, 3690), (205, 3150), (210, 3075), (225, 2870), (246, 2625), (250, 2583), (287, 2250), (315, 2050), (350, 1845), (369, 1750), (375, 1722), (410, 1575), (450, 1435), (525, 1230), (574, 1125), (615, 1050), (630, 1025), (738, 875), (750, 861)]