18935970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 29448030

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 139, 190, 239, 278, 285, 417, 478, 570, 695, 717, 834, 1195, 1390, 1434, 2085, 2390, 2641, 3585, 4170, 4541, 5282, 7170, 7923, 9082, 13205, 13623, 15846, 22705, 26410, 27246, 33221, 39615, 45410, 66442, 68115, 79230, 99663, 136230, 166105, 199326, 332210, 498315, 631199, 996630, 1262398, 1893597, 3155995, 3787194, 6311990, 9467985, 18935970]

約数ペア:

[(1, 18935970), (2, 9467985), (3, 6311990), (5, 3787194), (6, 3155995), (10, 1893597), (15, 1262398), (19, 996630), (30, 631199), (38, 498315), (57, 332210), (95, 199326), (114, 166105), (139, 136230), (190, 99663), (239, 79230), (278, 68115), (285, 66442), (417, 45410), (478, 39615), (570, 33221), (695, 27246), (717, 26410), (834, 22705), (1195, 15846), (1390, 13623), (1434, 13205), (2085, 9082), (2390, 7923), (2641, 7170), (3585, 5282), (4170, 4541)]