20533500

素因数分解:

$2^2\times 3^5\times 5^3\times {\mathrm{13}}^2$

素因数の和:60

約数の個数: 216

約数和(自身を含む): 72740304

約数和(自身を除く): 52206804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 75, 78, 81, 90, 100, 108, 117, 125, 130, 135, 150, 156, 162, 169, 180, 195, 225, 234, 243, 250, 260, 270, 300, 324, 325, 338, 351, 375, 390, 405, 450, 468, 486, 500, 507, 540, 585, 650, 675, 676, 702, 750, 780, 810, 845, 900, 972, 975, 1014, 1053, 1125, 1170, 1215, 1300, 1350, 1404, 1500, 1521, 1620, 1625, 1690, 1755, 1950, 2025, 2028, 2106, 2250, 2340, 2430, 2535, 2700, 2925, 3042, 3159, 3250, 3375, 3380, 3510, 3900, 4050, 4212, 4225, 4500, 4563, 4860, 4875, 5070, 5265, 5850, 6075, 6084, 6318, 6500, 6750, 7020, 7605, 8100, 8450, 8775, 9126, 9750, 10125, 10140, 10530, 11700, 12150, 12636, 12675, 13500, 13689, 14625, 15210, 15795, 16900, 17550, 18252, 19500, 20250, 21060, 21125, 22815, 24300, 25350, 26325, 27378, 29250, 30375, 30420, 31590, 35100, 38025, 40500, 41067, 42250, 43875, 45630, 50700, 52650, 54756, 58500, 60750, 63180, 63375, 68445, 76050, 78975, 82134, 84500, 87750, 91260, 105300, 114075, 121500, 126750, 131625, 136890, 152100, 157950, 164268, 175500, 190125, 205335, 228150, 253500, 263250, 273780, 315900, 342225, 380250, 394875, 410670, 456300, 526500, 570375, 684450, 760500, 789750, 821340, 1026675, 1140750, 1368900, 1579500, 1711125, 2053350, 2281500, 3422250, 4106700, 5133375, 6844500, 10266750, 20533500]

約数ペア:

[(1, 20533500), (2, 10266750), (3, 6844500), (4, 5133375), (5, 4106700), (6, 3422250), (9, 2281500), (10, 2053350), (12, 1711125), (13, 1579500), (15, 1368900), (18, 1140750), (20, 1026675), (25, 821340), (26, 789750), (27, 760500), (30, 684450), (36, 570375), (39, 526500), (45, 456300), (50, 410670), (52, 394875), (54, 380250), (60, 342225), (65, 315900), (75, 273780), (78, 263250), (81, 253500), (90, 228150), (100, 205335), (108, 190125), (117, 175500), (125, 164268), (130, 157950), (135, 152100), (150, 136890), (156, 131625), (162, 126750), (169, 121500), (180, 114075), (195, 105300), (225, 91260), (234, 87750), (243, 84500), (250, 82134), (260, 78975), (270, 76050), (300, 68445), (324, 63375), (325, 63180), (338, 60750), (351, 58500), (375, 54756), (390, 52650), (405, 50700), (450, 45630), (468, 43875), (486, 42250), (500, 41067), (507, 40500), (540, 38025), (585, 35100), (650, 31590), (675, 30420), (676, 30375), (702, 29250), (750, 27378), (780, 26325), (810, 25350), (845, 24300), (900, 22815), (972, 21125), (975, 21060), (1014, 20250), (1053, 19500), (1125, 18252), (1170, 17550), (1215, 16900), (1300, 15795), (1350, 15210), (1404, 14625), (1500, 13689), (1521, 13500), (1620, 12675), (1625, 12636), (1690, 12150), (1755, 11700), (1950, 10530), (2025, 10140), (2028, 10125), (2106, 9750), (2250, 9126), (2340, 8775), (2430, 8450), (2535, 8100), (2700, 7605), (2925, 7020), (3042, 6750), (3159, 6500), (3250, 6318), (3375, 6084), (3380, 6075), (3510, 5850), (3900, 5265), (4050, 5070), (4212, 4875), (4225, 4860), (4500, 4563)]