28618400

素因数分解:

$2^5\times 5^2\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:534

約数の個数: 72

約数和(自身を含む): 70870464

約数和(自身を除く): 42252064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 83, 100, 160, 166, 200, 332, 400, 415, 431, 664, 800, 830, 862, 1328, 1660, 1724, 2075, 2155, 2656, 3320, 3448, 4150, 4310, 6640, 6896, 8300, 8620, 10775, 13280, 13792, 16600, 17240, 21550, 33200, 34480, 35773, 43100, 66400, 68960, 71546, 86200, 143092, 172400, 178865, 286184, 344800, 357730, 572368, 715460, 894325, 1144736, 1430920, 1788650, 2861840, 3577300, 5723680, 7154600, 14309200, 28618400]

約数ペア:

[(1, 28618400), (2, 14309200), (4, 7154600), (5, 5723680), (8, 3577300), (10, 2861840), (16, 1788650), (20, 1430920), (25, 1144736), (32, 894325), (40, 715460), (50, 572368), (80, 357730), (83, 344800), (100, 286184), (160, 178865), (166, 172400), (200, 143092), (332, 86200), (400, 71546), (415, 68960), (431, 66400), (664, 43100), (800, 35773), (830, 34480), (862, 33200), (1328, 21550), (1660, 17240), (1724, 16600), (2075, 13792), (2155, 13280), (2656, 10775), (3320, 8620), (3448, 8300), (4150, 6896), (4310, 6640)]