20819370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:268

約数の個数: 128

約数和(自身を含む): 61544448

約数和(自身を除く): 40725078

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 23, 26, 30, 33, 39, 46, 55, 65, 66, 69, 78, 110, 115, 130, 138, 143, 165, 195, 211, 230, 253, 286, 299, 330, 345, 390, 422, 429, 506, 598, 633, 690, 715, 759, 858, 897, 1055, 1265, 1266, 1430, 1495, 1518, 1794, 2110, 2145, 2321, 2530, 2743, 2990, 3165, 3289, 3795, 4290, 4485, 4642, 4853, 5486, 6330, 6578, 6963, 7590, 8229, 8970, 9706, 9867, 11605, 13715, 13926, 14559, 16445, 16458, 19734, 23210, 24265, 27430, 29118, 30173, 32890, 34815, 41145, 48530, 49335, 53383, 60346, 63089, 69630, 72795, 82290, 90519, 98670, 106766, 126178, 145590, 150865, 160149, 181038, 189267, 266915, 301730, 315445, 320298, 378534, 452595, 533830, 630890, 693979, 800745, 905190, 946335, 1387958, 1601490, 1892670, 2081937, 3469895, 4163874, 6939790, 10409685, 20819370]

約数ペア:

[(1, 20819370), (2, 10409685), (3, 6939790), (5, 4163874), (6, 3469895), (10, 2081937), (11, 1892670), (13, 1601490), (15, 1387958), (22, 946335), (23, 905190), (26, 800745), (30, 693979), (33, 630890), (39, 533830), (46, 452595), (55, 378534), (65, 320298), (66, 315445), (69, 301730), (78, 266915), (110, 189267), (115, 181038), (130, 160149), (138, 150865), (143, 145590), (165, 126178), (195, 106766), (211, 98670), (230, 90519), (253, 82290), (286, 72795), (299, 69630), (330, 63089), (345, 60346), (390, 53383), (422, 49335), (429, 48530), (506, 41145), (598, 34815), (633, 32890), (690, 30173), (715, 29118), (759, 27430), (858, 24265), (897, 23210), (1055, 19734), (1265, 16458), (1266, 16445), (1430, 14559), (1495, 13926), (1518, 13715), (1794, 11605), (2110, 9867), (2145, 9706), (2321, 8970), (2530, 8229), (2743, 7590), (2990, 6963), (3165, 6578), (3289, 6330), (3795, 5486), (4290, 4853), (4485, 4642)]