28721935300

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1297}}^1\times {\mathrm{3119}}^1$

素因数の和:4501

約数の個数: 72

約数和(自身を含む): 63273450240

約数和(自身を除く): 34551514940

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1297, 1420, 1775, 2594, 3119, 3550, 5188, 6238, 6485, 7100, 12476, 12970, 15595, 25940, 31190, 32425, 62380, 64850, 77975, 92087, 129700, 155950, 184174, 221449, 311900, 368348, 442898, 460435, 885796, 920870, 1107245, 1841740, 2214490, 2302175, 4045343, 4428980, 4604350, 5536225, 8090686, 9208700, 11072450, 16181372, 20226715, 22144900, 40453430, 80906860, 101133575, 202267150, 287219353, 404534300, 574438706, 1148877412, 1436096765, 2872193530, 5744387060, 7180483825, 14360967650, 28721935300]

約数ペア:

[(1, 28721935300), (2, 14360967650), (4, 7180483825), (5, 5744387060), (10, 2872193530), (20, 1436096765), (25, 1148877412), (50, 574438706), (71, 404534300), (100, 287219353), (142, 202267150), (284, 101133575), (355, 80906860), (710, 40453430), (1297, 22144900), (1420, 20226715), (1775, 16181372), (2594, 11072450), (3119, 9208700), (3550, 8090686), (5188, 5536225), (6238, 4604350), (6485, 4428980), (7100, 4045343), (12476, 2302175), (12970, 2214490), (15595, 1841740), (25940, 1107245), (31190, 920870), (32425, 885796), (62380, 460435), (64850, 442898), (77975, 368348), (92087, 311900), (129700, 221449), (155950, 184174)]