245951390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{21221}}^1$

素因数の和:21308

約数の個数: 32

約数和(自身を含む): 473675040

約数和(自身を除く): 227723650

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 2318, 5795, 11590, 21221, 42442, 106105, 212210, 403199, 806398, 1294481, 2015995, 2588962, 4031990, 6472405, 12944810, 24595139, 49190278, 122975695, 245951390]

約数ペア:

[(1, 245951390), (2, 122975695), (5, 49190278), (10, 24595139), (19, 12944810), (38, 6472405), (61, 4031990), (95, 2588962), (122, 2015995), (190, 1294481), (305, 806398), (610, 403199), (1159, 212210), (2318, 106105), (5795, 42442), (11590, 21221)]