20362500

素因数分解:

$2^2\times 3^2\times 5^5\times {\mathrm{181}}^1$

素因数の和:216

約数の個数: 108

約数和(自身を含む): 64691172

約数和(自身を除く): 44328672

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 181, 225, 250, 300, 362, 375, 450, 500, 543, 625, 724, 750, 900, 905, 1086, 1125, 1250, 1500, 1629, 1810, 1875, 2172, 2250, 2500, 2715, 3125, 3258, 3620, 3750, 4500, 4525, 5430, 5625, 6250, 6516, 7500, 8145, 9050, 9375, 10860, 11250, 12500, 13575, 16290, 18100, 18750, 22500, 22625, 27150, 28125, 32580, 37500, 40725, 45250, 54300, 56250, 67875, 81450, 90500, 112500, 113125, 135750, 162900, 203625, 226250, 271500, 339375, 407250, 452500, 565625, 678750, 814500, 1018125, 1131250, 1357500, 1696875, 2036250, 2262500, 3393750, 4072500, 5090625, 6787500, 10181250, 20362500]

約数ペア:

[(1, 20362500), (2, 10181250), (3, 6787500), (4, 5090625), (5, 4072500), (6, 3393750), (9, 2262500), (10, 2036250), (12, 1696875), (15, 1357500), (18, 1131250), (20, 1018125), (25, 814500), (30, 678750), (36, 565625), (45, 452500), (50, 407250), (60, 339375), (75, 271500), (90, 226250), (100, 203625), (125, 162900), (150, 135750), (180, 113125), (181, 112500), (225, 90500), (250, 81450), (300, 67875), (362, 56250), (375, 54300), (450, 45250), (500, 40725), (543, 37500), (625, 32580), (724, 28125), (750, 27150), (900, 22625), (905, 22500), (1086, 18750), (1125, 18100), (1250, 16290), (1500, 13575), (1629, 12500), (1810, 11250), (1875, 10860), (2172, 9375), (2250, 9050), (2500, 8145), (2715, 7500), (3125, 6516), (3258, 6250), (3620, 5625), (3750, 5430), (4500, 4525)]