15997500

素因数分解:

$2^2\times 3^4\times 5^4\times {\mathrm{79}}^1$

素因数の和:115

約数の個数: 150

約数和(自身を含む): 52920560

約数和(自身を除く): 36923060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 79, 81, 90, 100, 108, 125, 135, 150, 158, 162, 180, 225, 237, 250, 270, 300, 316, 324, 375, 395, 405, 450, 474, 500, 540, 625, 675, 711, 750, 790, 810, 900, 948, 1125, 1185, 1250, 1350, 1422, 1500, 1580, 1620, 1875, 1975, 2025, 2133, 2250, 2370, 2500, 2700, 2844, 3375, 3555, 3750, 3950, 4050, 4266, 4500, 4740, 5625, 5925, 6399, 6750, 7110, 7500, 7900, 8100, 8532, 9875, 10125, 10665, 11250, 11850, 12798, 13500, 14220, 16875, 17775, 19750, 20250, 21330, 22500, 23700, 25596, 29625, 31995, 33750, 35550, 39500, 40500, 42660, 49375, 50625, 53325, 59250, 63990, 67500, 71100, 88875, 98750, 101250, 106650, 118500, 127980, 148125, 159975, 177750, 197500, 202500, 213300, 266625, 296250, 319950, 355500, 444375, 533250, 592500, 639900, 799875, 888750, 1066500, 1333125, 1599750, 1777500, 2666250, 3199500, 3999375, 5332500, 7998750, 15997500]

約数ペア:

[(1, 15997500), (2, 7998750), (3, 5332500), (4, 3999375), (5, 3199500), (6, 2666250), (9, 1777500), (10, 1599750), (12, 1333125), (15, 1066500), (18, 888750), (20, 799875), (25, 639900), (27, 592500), (30, 533250), (36, 444375), (45, 355500), (50, 319950), (54, 296250), (60, 266625), (75, 213300), (79, 202500), (81, 197500), (90, 177750), (100, 159975), (108, 148125), (125, 127980), (135, 118500), (150, 106650), (158, 101250), (162, 98750), (180, 88875), (225, 71100), (237, 67500), (250, 63990), (270, 59250), (300, 53325), (316, 50625), (324, 49375), (375, 42660), (395, 40500), (405, 39500), (450, 35550), (474, 33750), (500, 31995), (540, 29625), (625, 25596), (675, 23700), (711, 22500), (750, 21330), (790, 20250), (810, 19750), (900, 17775), (948, 16875), (1125, 14220), (1185, 13500), (1250, 12798), (1350, 11850), (1422, 11250), (1500, 10665), (1580, 10125), (1620, 9875), (1875, 8532), (1975, 8100), (2025, 7900), (2133, 7500), (2250, 7110), (2370, 6750), (2500, 6399), (2700, 5925), (2844, 5625), (3375, 4740), (3555, 4500), (3750, 4266), (3950, 4050)]