216820900

素因数分解:

$2^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 482094144

約数和(自身を除く): 265273244

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 151, 166, 173, 302, 332, 346, 415, 604, 692, 755, 830, 865, 1510, 1660, 1730, 2075, 3020, 3460, 3775, 4150, 4325, 7550, 8300, 8650, 12533, 14359, 15100, 17300, 25066, 26123, 28718, 50132, 52246, 57436, 62665, 71795, 104492, 125330, 130615, 143590, 250660, 261230, 287180, 313325, 358975, 522460, 626650, 653075, 717950, 1253300, 1306150, 1435900, 2168209, 2612300, 4336418, 8672836, 10841045, 21682090, 43364180, 54205225, 108410450, 216820900]

約数ペア:

[(1, 216820900), (2, 108410450), (4, 54205225), (5, 43364180), (10, 21682090), (20, 10841045), (25, 8672836), (50, 4336418), (83, 2612300), (100, 2168209), (151, 1435900), (166, 1306150), (173, 1253300), (302, 717950), (332, 653075), (346, 626650), (415, 522460), (604, 358975), (692, 313325), (755, 287180), (830, 261230), (865, 250660), (1510, 143590), (1660, 130615), (1730, 125330), (2075, 104492), (3020, 71795), (3460, 62665), (3775, 57436), (4150, 52246), (4325, 50132), (7550, 28718), (8300, 26123), (8650, 25066), (12533, 17300), (14359, 15100)]