1720400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:69

約数の個数: 120

約数和(自身を含む): 4981824

約数和(自身を除く): 3261424

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 23, 25, 34, 40, 44, 46, 50, 55, 68, 80, 85, 88, 92, 100, 110, 115, 136, 170, 176, 184, 187, 200, 220, 230, 253, 272, 275, 340, 368, 374, 391, 400, 425, 440, 460, 506, 550, 575, 680, 748, 782, 850, 880, 920, 935, 1012, 1100, 1150, 1265, 1360, 1496, 1564, 1700, 1840, 1870, 1955, 2024, 2200, 2300, 2530, 2992, 3128, 3400, 3740, 3910, 4048, 4301, 4400, 4600, 4675, 5060, 6256, 6325, 6800, 7480, 7820, 8602, 9200, 9350, 9775, 10120, 12650, 14960, 15640, 17204, 18700, 19550, 20240, 21505, 25300, 31280, 34408, 37400, 39100, 43010, 50600, 68816, 74800, 78200, 86020, 101200, 107525, 156400, 172040, 215050, 344080, 430100, 860200, 1720400]

約数ペア:

[(1, 1720400), (2, 860200), (4, 430100), (5, 344080), (8, 215050), (10, 172040), (11, 156400), (16, 107525), (17, 101200), (20, 86020), (22, 78200), (23, 74800), (25, 68816), (34, 50600), (40, 43010), (44, 39100), (46, 37400), (50, 34408), (55, 31280), (68, 25300), (80, 21505), (85, 20240), (88, 19550), (92, 18700), (100, 17204), (110, 15640), (115, 14960), (136, 12650), (170, 10120), (176, 9775), (184, 9350), (187, 9200), (200, 8602), (220, 7820), (230, 7480), (253, 6800), (272, 6325), (275, 6256), (340, 5060), (368, 4675), (374, 4600), (391, 4400), (400, 4301), (425, 4048), (440, 3910), (460, 3740), (506, 3400), (550, 3128), (575, 2992), (680, 2530), (748, 2300), (782, 2200), (850, 2024), (880, 1955), (920, 1870), (935, 1840), (1012, 1700), (1100, 1564), (1150, 1496), (1265, 1360)]