78428280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1279}}^1$

素因数の和:1373

約数の個数: 128

約数和(自身を含む): 272793600

約数和(自身を除く): 194365320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 73, 84, 105, 120, 140, 146, 168, 210, 219, 280, 292, 365, 420, 438, 511, 584, 730, 840, 876, 1022, 1095, 1279, 1460, 1533, 1752, 2044, 2190, 2555, 2558, 2920, 3066, 3837, 4088, 4380, 5110, 5116, 6132, 6395, 7665, 7674, 8760, 8953, 10220, 10232, 12264, 12790, 15330, 15348, 17906, 19185, 20440, 25580, 26859, 30660, 30696, 35812, 38370, 44765, 51160, 53718, 61320, 71624, 76740, 89530, 93367, 107436, 134295, 153480, 179060, 186734, 214872, 268590, 280101, 358120, 373468, 466835, 537180, 560202, 653569, 746936, 933670, 1074360, 1120404, 1307138, 1400505, 1867340, 1960707, 2240808, 2614276, 2801010, 3267845, 3734680, 3921414, 5228552, 5602020, 6535690, 7842828, 9803535, 11204040, 13071380, 15685656, 19607070, 26142760, 39214140, 78428280]

約数ペア:

[(1, 78428280), (2, 39214140), (3, 26142760), (4, 19607070), (5, 15685656), (6, 13071380), (7, 11204040), (8, 9803535), (10, 7842828), (12, 6535690), (14, 5602020), (15, 5228552), (20, 3921414), (21, 3734680), (24, 3267845), (28, 2801010), (30, 2614276), (35, 2240808), (40, 1960707), (42, 1867340), (56, 1400505), (60, 1307138), (70, 1120404), (73, 1074360), (84, 933670), (105, 746936), (120, 653569), (140, 560202), (146, 537180), (168, 466835), (210, 373468), (219, 358120), (280, 280101), (292, 268590), (365, 214872), (420, 186734), (438, 179060), (511, 153480), (584, 134295), (730, 107436), (840, 93367), (876, 89530), (1022, 76740), (1095, 71624), (1279, 61320), (1460, 53718), (1533, 51160), (1752, 44765), (2044, 38370), (2190, 35812), (2555, 30696), (2558, 30660), (2920, 26859), (3066, 25580), (3837, 20440), (4088, 19185), (4380, 17906), (5110, 15348), (5116, 15330), (6132, 12790), (6395, 12264), (7665, 10232), (7674, 10220), (8760, 8953)]