18995400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 65213460

約数和(自身を除く): 46218060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 61, 72, 75, 90, 100, 120, 122, 150, 173, 180, 183, 200, 225, 244, 300, 305, 346, 360, 366, 450, 488, 519, 549, 600, 610, 692, 732, 865, 900, 915, 1038, 1098, 1220, 1384, 1464, 1525, 1557, 1730, 1800, 1830, 2076, 2196, 2440, 2595, 2745, 3050, 3114, 3460, 3660, 4152, 4325, 4392, 4575, 5190, 5490, 6100, 6228, 6920, 7320, 7785, 8650, 9150, 10380, 10553, 10980, 12200, 12456, 12975, 13725, 15570, 17300, 18300, 20760, 21106, 21960, 25950, 27450, 31140, 31659, 34600, 36600, 38925, 42212, 51900, 52765, 54900, 62280, 63318, 77850, 84424, 94977, 103800, 105530, 109800, 126636, 155700, 158295, 189954, 211060, 253272, 263825, 311400, 316590, 379908, 422120, 474885, 527650, 633180, 759816, 791475, 949770, 1055300, 1266360, 1582950, 1899540, 2110600, 2374425, 3165900, 3799080, 4748850, 6331800, 9497700, 18995400]

約数ペア:

[(1, 18995400), (2, 9497700), (3, 6331800), (4, 4748850), (5, 3799080), (6, 3165900), (8, 2374425), (9, 2110600), (10, 1899540), (12, 1582950), (15, 1266360), (18, 1055300), (20, 949770), (24, 791475), (25, 759816), (30, 633180), (36, 527650), (40, 474885), (45, 422120), (50, 379908), (60, 316590), (61, 311400), (72, 263825), (75, 253272), (90, 211060), (100, 189954), (120, 158295), (122, 155700), (150, 126636), (173, 109800), (180, 105530), (183, 103800), (200, 94977), (225, 84424), (244, 77850), (300, 63318), (305, 62280), (346, 54900), (360, 52765), (366, 51900), (450, 42212), (488, 38925), (519, 36600), (549, 34600), (600, 31659), (610, 31140), (692, 27450), (732, 25950), (865, 21960), (900, 21106), (915, 20760), (1038, 18300), (1098, 17300), (1220, 15570), (1384, 13725), (1464, 12975), (1525, 12456), (1557, 12200), (1730, 10980), (1800, 10553), (1830, 10380), (2076, 9150), (2196, 8650), (2440, 7785), (2595, 7320), (2745, 6920), (3050, 6228), (3114, 6100), (3460, 5490), (3660, 5190), (4152, 4575), (4325, 4392)]