2021004860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1\times {\mathrm{509}}^1$

素因数の和:963

約数の個数: 96

約数和(自身を含む): 4935168000

約数和(自身を除く): 2914163140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 359, 395, 509, 553, 718, 790, 1018, 1106, 1436, 1580, 1795, 2036, 2212, 2513, 2545, 2765, 3563, 3590, 5026, 5090, 5530, 7126, 7180, 10052, 10180, 11060, 12565, 14252, 17815, 25130, 28361, 35630, 40211, 50260, 56722, 71260, 80422, 113444, 141805, 160844, 182731, 198527, 201055, 281477, 283610, 365462, 397054, 402110, 562954, 567220, 730924, 794108, 804220, 913655, 992635, 1125908, 1279117, 1407385, 1827310, 1985270, 2558234, 2814770, 3654620, 3970540, 5116468, 5629540, 6395585, 12791170, 14435749, 25582340, 28871498, 57742996, 72178745, 101050243, 144357490, 202100486, 288714980, 404200972, 505251215, 1010502430, 2021004860]

約数ペア:

[(1, 2021004860), (2, 1010502430), (4, 505251215), (5, 404200972), (7, 288714980), (10, 202100486), (14, 144357490), (20, 101050243), (28, 72178745), (35, 57742996), (70, 28871498), (79, 25582340), (140, 14435749), (158, 12791170), (316, 6395585), (359, 5629540), (395, 5116468), (509, 3970540), (553, 3654620), (718, 2814770), (790, 2558234), (1018, 1985270), (1106, 1827310), (1436, 1407385), (1580, 1279117), (1795, 1125908), (2036, 992635), (2212, 913655), (2513, 804220), (2545, 794108), (2765, 730924), (3563, 567220), (3590, 562954), (5026, 402110), (5090, 397054), (5530, 365462), (7126, 283610), (7180, 281477), (10052, 201055), (10180, 198527), (11060, 182731), (12565, 160844), (14252, 141805), (17815, 113444), (25130, 80422), (28361, 71260), (35630, 56722), (40211, 50260)]