1271900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 3333120

約数和(自身を除く): 2061220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 79, 92, 100, 115, 140, 158, 161, 175, 230, 316, 322, 350, 395, 460, 553, 575, 644, 700, 790, 805, 1106, 1150, 1580, 1610, 1817, 1975, 2212, 2300, 2765, 3220, 3634, 3950, 4025, 5530, 7268, 7900, 8050, 9085, 11060, 12719, 13825, 16100, 18170, 25438, 27650, 36340, 45425, 50876, 55300, 63595, 90850, 127190, 181700, 254380, 317975, 635950, 1271900]

約数ペア:

[(1, 1271900), (2, 635950), (4, 317975), (5, 254380), (7, 181700), (10, 127190), (14, 90850), (20, 63595), (23, 55300), (25, 50876), (28, 45425), (35, 36340), (46, 27650), (50, 25438), (70, 18170), (79, 16100), (92, 13825), (100, 12719), (115, 11060), (140, 9085), (158, 8050), (161, 7900), (175, 7268), (230, 5530), (316, 4025), (322, 3950), (350, 3634), (395, 3220), (460, 2765), (553, 2300), (575, 2212), (644, 1975), (700, 1817), (790, 1610), (805, 1580), (1106, 1150)]