16180900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 37122624

約数和(自身を除く): 20941724

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 53, 71, 86, 100, 106, 142, 172, 212, 215, 265, 284, 355, 430, 530, 710, 860, 1060, 1075, 1325, 1420, 1775, 2150, 2279, 2650, 3053, 3550, 3763, 4300, 4558, 5300, 6106, 7100, 7526, 9116, 11395, 12212, 15052, 15265, 18815, 22790, 30530, 37630, 45580, 56975, 61060, 75260, 76325, 94075, 113950, 152650, 161809, 188150, 227900, 305300, 323618, 376300, 647236, 809045, 1618090, 3236180, 4045225, 8090450, 16180900]

約数ペア:

[(1, 16180900), (2, 8090450), (4, 4045225), (5, 3236180), (10, 1618090), (20, 809045), (25, 647236), (43, 376300), (50, 323618), (53, 305300), (71, 227900), (86, 188150), (100, 161809), (106, 152650), (142, 113950), (172, 94075), (212, 76325), (215, 75260), (265, 61060), (284, 56975), (355, 45580), (430, 37630), (530, 30530), (710, 22790), (860, 18815), (1060, 15265), (1075, 15052), (1325, 12212), (1420, 11395), (1775, 9116), (2150, 7526), (2279, 7100), (2650, 6106), (3053, 5300), (3550, 4558), (3763, 4300)]