71248520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3221}}^1$

素因数の和:3318

約数の個数: 64

約数和(自身を含む): 185587200

約数和(自身を除く): 114338680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1580, 2212, 2765, 3160, 3221, 4424, 5530, 6442, 11060, 12884, 16105, 22120, 22547, 25768, 32210, 45094, 64420, 90188, 112735, 128840, 180376, 225470, 254459, 450940, 508918, 901880, 1017836, 1272295, 1781213, 2035672, 2544590, 3562426, 5089180, 7124852, 8906065, 10178360, 14249704, 17812130, 35624260, 71248520]

約数ペア:

[(1, 71248520), (2, 35624260), (4, 17812130), (5, 14249704), (7, 10178360), (8, 8906065), (10, 7124852), (14, 5089180), (20, 3562426), (28, 2544590), (35, 2035672), (40, 1781213), (56, 1272295), (70, 1017836), (79, 901880), (140, 508918), (158, 450940), (280, 254459), (316, 225470), (395, 180376), (553, 128840), (632, 112735), (790, 90188), (1106, 64420), (1580, 45094), (2212, 32210), (2765, 25768), (3160, 22547), (3221, 22120), (4424, 16105), (5530, 12884), (6442, 11060)]