30387440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12253}}^1$

素因数の和:12297

約数の個数: 40

約数和(自身を含む): 72935808

約数和(自身を除く): 42548368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12253, 24506, 49012, 61265, 98024, 122530, 196048, 245060, 379843, 490120, 759686, 980240, 1519372, 1899215, 3038744, 3798430, 6077488, 7596860, 15193720, 30387440]

約数ペア:

[(1, 30387440), (2, 15193720), (4, 7596860), (5, 6077488), (8, 3798430), (10, 3038744), (16, 1899215), (20, 1519372), (31, 980240), (40, 759686), (62, 490120), (80, 379843), (124, 245060), (155, 196048), (248, 122530), (310, 98024), (496, 61265), (620, 49012), (1240, 24506), (2480, 12253)]