297440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2$

素因数の和:52

約数の個数: 72

約数和(自身を含む): 830088

約数和(自身を除く): 532648

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 169, 176, 208, 220, 260, 286, 338, 352, 416, 440, 520, 572, 676, 715, 845, 880, 1040, 1144, 1352, 1430, 1690, 1760, 1859, 2080, 2288, 2704, 2860, 3380, 3718, 4576, 5408, 5720, 6760, 7436, 9295, 11440, 13520, 14872, 18590, 22880, 27040, 29744, 37180, 59488, 74360, 148720, 297440]

約数ペア:

[(1, 297440), (2, 148720), (4, 74360), (5, 59488), (8, 37180), (10, 29744), (11, 27040), (13, 22880), (16, 18590), (20, 14872), (22, 13520), (26, 11440), (32, 9295), (40, 7436), (44, 6760), (52, 5720), (55, 5408), (65, 4576), (80, 3718), (88, 3380), (104, 2860), (110, 2704), (130, 2288), (143, 2080), (160, 1859), (169, 1760), (176, 1690), (208, 1430), (220, 1352), (260, 1144), (286, 1040), (338, 880), (352, 845), (416, 715), (440, 676), (520, 572)]