215460420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{513001}}^1$

素因数の和:513020

約数の個数: 48

約数和(自身を含む): 689474688

約数和(自身を除く): 474014268

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 513001, 1026002, 1539003, 2052004, 2565005, 3078006, 3591007, 5130010, 6156012, 7182014, 7695015, 10260020, 10773021, 14364028, 15390030, 17955035, 21546042, 30780060, 35910070, 43092084, 53865105, 71820140, 107730210, 215460420]

約数ペア:

[(1, 215460420), (2, 107730210), (3, 71820140), (4, 53865105), (5, 43092084), (6, 35910070), (7, 30780060), (10, 21546042), (12, 17955035), (14, 15390030), (15, 14364028), (20, 10773021), (21, 10260020), (28, 7695015), (30, 7182014), (35, 6156012), (42, 5130010), (60, 3591007), (70, 3078006), (84, 2565005), (105, 2052004), (140, 1539003), (210, 1026002), (420, 513001)]