255937725

素因数分解:

$3^4\times 5^2\times {\mathrm{211}}^1\times {\mathrm{599}}^1$

素因数の和:832

約数の個数: 60

約数和(自身を含む): 477127200

約数和(自身を除く): 221189475

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 211, 225, 405, 599, 633, 675, 1055, 1797, 1899, 2025, 2995, 3165, 5275, 5391, 5697, 8985, 9495, 14975, 15825, 16173, 17091, 26955, 28485, 44925, 47475, 48519, 80865, 85455, 126389, 134775, 142425, 242595, 379167, 404325, 427275, 631945, 1137501, 1212975, 1895835, 3159725, 3412503, 5687505, 9479175, 10237509, 17062515, 28437525, 51187545, 85312575, 255937725]

約数ペア:

[(1, 255937725), (3, 85312575), (5, 51187545), (9, 28437525), (15, 17062515), (25, 10237509), (27, 9479175), (45, 5687505), (75, 3412503), (81, 3159725), (135, 1895835), (211, 1212975), (225, 1137501), (405, 631945), (599, 427275), (633, 404325), (675, 379167), (1055, 242595), (1797, 142425), (1899, 134775), (2025, 126389), (2995, 85455), (3165, 80865), (5275, 48519), (5391, 47475), (5697, 44925), (8985, 28485), (9495, 26955), (14975, 17091), (15825, 16173)]