66177680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 159418368

約数和(自身を除く): 93240688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 71, 80, 122, 142, 191, 244, 284, 305, 355, 382, 488, 568, 610, 710, 764, 955, 976, 1136, 1220, 1420, 1528, 1910, 2440, 2840, 3056, 3820, 4331, 4880, 5680, 7640, 8662, 11651, 13561, 15280, 17324, 21655, 23302, 27122, 34648, 43310, 46604, 54244, 58255, 67805, 69296, 86620, 93208, 108488, 116510, 135610, 173240, 186416, 216976, 233020, 271220, 346480, 466040, 542440, 827221, 932080, 1084880, 1654442, 3308884, 4136105, 6617768, 8272210, 13235536, 16544420, 33088840, 66177680]

約数ペア:

[(1, 66177680), (2, 33088840), (4, 16544420), (5, 13235536), (8, 8272210), (10, 6617768), (16, 4136105), (20, 3308884), (40, 1654442), (61, 1084880), (71, 932080), (80, 827221), (122, 542440), (142, 466040), (191, 346480), (244, 271220), (284, 233020), (305, 216976), (355, 186416), (382, 173240), (488, 135610), (568, 116510), (610, 108488), (710, 93208), (764, 86620), (955, 69296), (976, 67805), (1136, 58255), (1220, 54244), (1420, 46604), (1528, 43310), (1910, 34648), (2440, 27122), (2840, 23302), (3056, 21655), (3820, 17324), (4331, 15280), (4880, 13561), (5680, 11651), (7640, 8662)]