16980860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{271}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 38704512

約数和(自身を除く): 21723652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 241, 260, 271, 482, 542, 964, 1084, 1205, 1355, 2410, 2710, 3133, 3523, 4820, 5420, 6266, 7046, 12532, 14092, 15665, 17615, 31330, 35230, 62660, 65311, 70460, 130622, 261244, 326555, 653110, 849043, 1306220, 1698086, 3396172, 4245215, 8490430, 16980860]

約数ペア:

[(1, 16980860), (2, 8490430), (4, 4245215), (5, 3396172), (10, 1698086), (13, 1306220), (20, 849043), (26, 653110), (52, 326555), (65, 261244), (130, 130622), (241, 70460), (260, 65311), (271, 62660), (482, 35230), (542, 31330), (964, 17615), (1084, 15665), (1205, 14092), (1355, 12532), (2410, 7046), (2710, 6266), (3133, 5420), (3523, 4820)]