328721680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9623}}^1$

素因数の和:9704

約数の個数: 80

約数和(自身を含む): 887871744

約数和(自身を除く): 559150064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 2135, 2440, 3416, 4270, 4880, 6832, 8540, 9623, 17080, 19246, 34160, 38492, 48115, 67361, 76984, 96230, 134722, 153968, 192460, 269444, 336805, 384920, 538888, 587003, 673610, 769840, 1077776, 1174006, 1347220, 2348012, 2694440, 2935015, 4109021, 4696024, 5388880, 5870030, 8218042, 9392048, 11740060, 16436084, 20545105, 23480120, 32872168, 41090210, 46960240, 65744336, 82180420, 164360840, 328721680]

約数ペア:

[(1, 328721680), (2, 164360840), (4, 82180420), (5, 65744336), (7, 46960240), (8, 41090210), (10, 32872168), (14, 23480120), (16, 20545105), (20, 16436084), (28, 11740060), (35, 9392048), (40, 8218042), (56, 5870030), (61, 5388880), (70, 4696024), (80, 4109021), (112, 2935015), (122, 2694440), (140, 2348012), (244, 1347220), (280, 1174006), (305, 1077776), (427, 769840), (488, 673610), (560, 587003), (610, 538888), (854, 384920), (976, 336805), (1220, 269444), (1708, 192460), (2135, 153968), (2440, 134722), (3416, 96230), (4270, 76984), (4880, 67361), (6832, 48115), (8540, 38492), (9623, 34160), (17080, 19246)]