209950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:61

約数の個数: 48

約数和(自身を含む): 468720

約数和(自身を除く): 258770

約数列:

[1, 2, 5, 10, 13, 17, 19, 25, 26, 34, 38, 50, 65, 85, 95, 130, 170, 190, 221, 247, 323, 325, 425, 442, 475, 494, 646, 650, 850, 950, 1105, 1235, 1615, 2210, 2470, 3230, 4199, 5525, 6175, 8075, 8398, 11050, 12350, 16150, 20995, 41990, 104975, 209950]

約数ペア:

[(1, 209950), (2, 104975), (5, 41990), (10, 20995), (13, 16150), (17, 12350), (19, 11050), (25, 8398), (26, 8075), (34, 6175), (38, 5525), (50, 4199), (65, 3230), (85, 2470), (95, 2210), (130, 1615), (170, 1235), (190, 1105), (221, 950), (247, 850), (323, 650), (325, 646), (425, 494), (442, 475)]