421644880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{797}}^1$

素因数の和:1216

約数の個数: 80

約数和(自身を含む): 1041964560

約数和(自身を除く): 620319680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 389, 680, 778, 797, 1360, 1556, 1594, 1945, 3112, 3188, 3890, 3985, 6224, 6376, 6613, 7780, 7970, 12752, 13226, 13549, 15560, 15940, 26452, 27098, 31120, 31880, 33065, 52904, 54196, 63760, 66130, 67745, 105808, 108392, 132260, 135490, 216784, 264520, 270980, 310033, 529040, 541960, 620066, 1083920, 1240132, 1550165, 2480264, 3100330, 4960528, 5270561, 6200660, 10541122, 12401320, 21082244, 24802640, 26352805, 42164488, 52705610, 84328976, 105411220, 210822440, 421644880]

約数ペア:

[(1, 421644880), (2, 210822440), (4, 105411220), (5, 84328976), (8, 52705610), (10, 42164488), (16, 26352805), (17, 24802640), (20, 21082244), (34, 12401320), (40, 10541122), (68, 6200660), (80, 5270561), (85, 4960528), (136, 3100330), (170, 2480264), (272, 1550165), (340, 1240132), (389, 1083920), (680, 620066), (778, 541960), (797, 529040), (1360, 310033), (1556, 270980), (1594, 264520), (1945, 216784), (3112, 135490), (3188, 132260), (3890, 108392), (3985, 105808), (6224, 67745), (6376, 66130), (6613, 63760), (7780, 54196), (7970, 52904), (12752, 33065), (13226, 31880), (13549, 31120), (15560, 27098), (15940, 26452)]