990131800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37223}}^1$

素因数の和:37265

約数の個数: 96

約数和(自身を含む): 2769465600

約数和(自身を除く): 1779333800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 50, 56, 70, 76, 95, 100, 133, 140, 152, 175, 190, 200, 266, 280, 350, 380, 475, 532, 665, 700, 760, 950, 1064, 1330, 1400, 1900, 2660, 3325, 3800, 5320, 6650, 13300, 26600, 37223, 74446, 148892, 186115, 260561, 297784, 372230, 521122, 707237, 744460, 930575, 1042244, 1302805, 1414474, 1488920, 1861150, 2084488, 2605610, 2828948, 3536185, 3722300, 4950659, 5211220, 5657896, 6514025, 7072370, 7444600, 9901318, 10422440, 13028050, 14144740, 17680925, 19802636, 24753295, 26056100, 28289480, 35361850, 39605272, 49506590, 52112200, 70723700, 99013180, 123766475, 141447400, 198026360, 247532950, 495065900, 990131800]

約数ペア:

[(1, 990131800), (2, 495065900), (4, 247532950), (5, 198026360), (7, 141447400), (8, 123766475), (10, 99013180), (14, 70723700), (19, 52112200), (20, 49506590), (25, 39605272), (28, 35361850), (35, 28289480), (38, 26056100), (40, 24753295), (50, 19802636), (56, 17680925), (70, 14144740), (76, 13028050), (95, 10422440), (100, 9901318), (133, 7444600), (140, 7072370), (152, 6514025), (175, 5657896), (190, 5211220), (200, 4950659), (266, 3722300), (280, 3536185), (350, 2828948), (380, 2605610), (475, 2084488), (532, 1861150), (665, 1488920), (700, 1414474), (760, 1302805), (950, 1042244), (1064, 930575), (1330, 744460), (1400, 707237), (1900, 521122), (2660, 372230), (3325, 297784), (3800, 260561), (5320, 186115), (6650, 148892), (13300, 74446), (26600, 37223)]