20427450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 96

約数和(自身を含む): 54853632

約数和(自身を除く): 34426182

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 31, 46, 50, 62, 69, 75, 93, 115, 138, 150, 155, 186, 191, 230, 310, 345, 382, 465, 573, 575, 690, 713, 775, 930, 955, 1146, 1150, 1426, 1550, 1725, 1910, 2139, 2325, 2865, 3450, 3565, 4278, 4393, 4650, 4775, 5730, 5921, 7130, 8786, 9550, 10695, 11842, 13179, 14325, 17763, 17825, 21390, 21965, 26358, 28650, 29605, 35526, 35650, 43930, 53475, 59210, 65895, 88815, 106950, 109825, 131790, 136183, 148025, 177630, 219650, 272366, 296050, 329475, 408549, 444075, 658950, 680915, 817098, 888150, 1361830, 2042745, 3404575, 4085490, 6809150, 10213725, 20427450]

約数ペア:

[(1, 20427450), (2, 10213725), (3, 6809150), (5, 4085490), (6, 3404575), (10, 2042745), (15, 1361830), (23, 888150), (25, 817098), (30, 680915), (31, 658950), (46, 444075), (50, 408549), (62, 329475), (69, 296050), (75, 272366), (93, 219650), (115, 177630), (138, 148025), (150, 136183), (155, 131790), (186, 109825), (191, 106950), (230, 88815), (310, 65895), (345, 59210), (382, 53475), (465, 43930), (573, 35650), (575, 35526), (690, 29605), (713, 28650), (775, 26358), (930, 21965), (955, 21390), (1146, 17825), (1150, 17763), (1426, 14325), (1550, 13179), (1725, 11842), (1910, 10695), (2139, 9550), (2325, 8786), (2865, 7130), (3450, 5921), (3565, 5730), (4278, 4775), (4393, 4650)]