20557800

素因数分解:

$2^3\times 3^7\times 5^2\times {\mathrm{47}}^1$

素因数の和:84

約数の個数: 192

約数和(自身を含む): 73209600

約数和(自身を除く): 52651800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 40, 45, 47, 50, 54, 60, 72, 75, 81, 90, 94, 100, 108, 120, 135, 141, 150, 162, 180, 188, 200, 216, 225, 235, 243, 270, 282, 300, 324, 360, 376, 405, 423, 450, 470, 486, 540, 564, 600, 648, 675, 705, 729, 810, 846, 900, 940, 972, 1080, 1128, 1175, 1215, 1269, 1350, 1410, 1458, 1620, 1692, 1800, 1880, 1944, 2025, 2115, 2187, 2350, 2430, 2538, 2700, 2820, 2916, 3240, 3384, 3525, 3645, 3807, 4050, 4230, 4374, 4700, 4860, 5076, 5400, 5640, 5832, 6075, 6345, 7050, 7290, 7614, 8100, 8460, 8748, 9400, 9720, 10152, 10575, 10935, 11421, 12150, 12690, 14100, 14580, 15228, 16200, 16920, 17496, 18225, 19035, 21150, 21870, 22842, 24300, 25380, 28200, 29160, 30456, 31725, 34263, 36450, 38070, 42300, 43740, 45684, 48600, 50760, 54675, 57105, 63450, 68526, 72900, 76140, 84600, 87480, 91368, 95175, 102789, 109350, 114210, 126900, 137052, 145800, 152280, 171315, 190350, 205578, 218700, 228420, 253800, 274104, 285525, 342630, 380700, 411156, 437400, 456840, 513945, 571050, 685260, 761400, 822312, 856575, 1027890, 1142100, 1370520, 1713150, 2055780, 2284200, 2569725, 3426300, 4111560, 5139450, 6852600, 10278900, 20557800]

約数ペア:

[(1, 20557800), (2, 10278900), (3, 6852600), (4, 5139450), (5, 4111560), (6, 3426300), (8, 2569725), (9, 2284200), (10, 2055780), (12, 1713150), (15, 1370520), (18, 1142100), (20, 1027890), (24, 856575), (25, 822312), (27, 761400), (30, 685260), (36, 571050), (40, 513945), (45, 456840), (47, 437400), (50, 411156), (54, 380700), (60, 342630), (72, 285525), (75, 274104), (81, 253800), (90, 228420), (94, 218700), (100, 205578), (108, 190350), (120, 171315), (135, 152280), (141, 145800), (150, 137052), (162, 126900), (180, 114210), (188, 109350), (200, 102789), (216, 95175), (225, 91368), (235, 87480), (243, 84600), (270, 76140), (282, 72900), (300, 68526), (324, 63450), (360, 57105), (376, 54675), (405, 50760), (423, 48600), (450, 45684), (470, 43740), (486, 42300), (540, 38070), (564, 36450), (600, 34263), (648, 31725), (675, 30456), (705, 29160), (729, 28200), (810, 25380), (846, 24300), (900, 22842), (940, 21870), (972, 21150), (1080, 19035), (1128, 18225), (1175, 17496), (1215, 16920), (1269, 16200), (1350, 15228), (1410, 14580), (1458, 14100), (1620, 12690), (1692, 12150), (1800, 11421), (1880, 10935), (1944, 10575), (2025, 10152), (2115, 9720), (2187, 9400), (2350, 8748), (2430, 8460), (2538, 8100), (2700, 7614), (2820, 7290), (2916, 7050), (3240, 6345), (3384, 6075), (3525, 5832), (3645, 5640), (3807, 5400), (4050, 5076), (4230, 4860), (4374, 4700)]