215461900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{751}}^1$

素因数の和:935

約数の個数: 72

約数和(自身を含む): 496079360

約数和(自身を除く): 280617460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 151, 190, 302, 380, 475, 604, 751, 755, 950, 1502, 1510, 1900, 2869, 3004, 3020, 3755, 3775, 5738, 7510, 7550, 11476, 14269, 14345, 15020, 15100, 18775, 28538, 28690, 37550, 57076, 57380, 71345, 71725, 75100, 113401, 142690, 143450, 226802, 285380, 286900, 356725, 453604, 567005, 713450, 1134010, 1426900, 2154619, 2268020, 2835025, 4309238, 5670050, 8618476, 10773095, 11340100, 21546190, 43092380, 53865475, 107730950, 215461900]

約数ペア:

[(1, 215461900), (2, 107730950), (4, 53865475), (5, 43092380), (10, 21546190), (19, 11340100), (20, 10773095), (25, 8618476), (38, 5670050), (50, 4309238), (76, 2835025), (95, 2268020), (100, 2154619), (151, 1426900), (190, 1134010), (302, 713450), (380, 567005), (475, 453604), (604, 356725), (751, 286900), (755, 285380), (950, 226802), (1502, 143450), (1510, 142690), (1900, 113401), (2869, 75100), (3004, 71725), (3020, 71345), (3755, 57380), (3775, 57076), (5738, 37550), (7510, 28690), (7550, 28538), (11476, 18775), (14269, 15100), (14345, 15020)]