1405980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 4363632

約数和(自身を除く): 2957652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 107, 146, 180, 214, 219, 292, 321, 365, 428, 438, 535, 642, 657, 730, 876, 963, 1070, 1095, 1284, 1314, 1460, 1605, 1926, 2140, 2190, 2628, 3210, 3285, 3852, 4380, 4815, 6420, 6570, 7811, 9630, 13140, 15622, 19260, 23433, 31244, 39055, 46866, 70299, 78110, 93732, 117165, 140598, 156220, 234330, 281196, 351495, 468660, 702990, 1405980]

約数ペア:

[(1, 1405980), (2, 702990), (3, 468660), (4, 351495), (5, 281196), (6, 234330), (9, 156220), (10, 140598), (12, 117165), (15, 93732), (18, 78110), (20, 70299), (30, 46866), (36, 39055), (45, 31244), (60, 23433), (73, 19260), (90, 15622), (107, 13140), (146, 9630), (180, 7811), (214, 6570), (219, 6420), (292, 4815), (321, 4380), (365, 3852), (428, 3285), (438, 3210), (535, 2628), (642, 2190), (657, 2140), (730, 1926), (876, 1605), (963, 1460), (1070, 1314), (1095, 1284)]