20305800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:440

約数の個数: 144

約数和(自身を含む): 70726500

約数和(自身を除く): 50420700

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 29, 30, 36, 40, 45, 50, 58, 60, 72, 75, 87, 90, 100, 116, 120, 145, 150, 174, 180, 200, 225, 232, 261, 290, 300, 348, 360, 389, 435, 450, 522, 580, 600, 696, 725, 778, 870, 900, 1044, 1160, 1167, 1305, 1450, 1556, 1740, 1800, 1945, 2088, 2175, 2334, 2610, 2900, 3112, 3480, 3501, 3890, 4350, 4668, 5220, 5800, 5835, 6525, 7002, 7780, 8700, 9336, 9725, 10440, 11281, 11670, 13050, 14004, 15560, 17400, 17505, 19450, 22562, 23340, 26100, 28008, 29175, 33843, 35010, 38900, 45124, 46680, 52200, 56405, 58350, 67686, 70020, 77800, 87525, 90248, 101529, 112810, 116700, 135372, 140040, 169215, 175050, 203058, 225620, 233400, 270744, 282025, 338430, 350100, 406116, 451240, 507645, 564050, 676860, 700200, 812232, 846075, 1015290, 1128100, 1353720, 1692150, 2030580, 2256200, 2538225, 3384300, 4061160, 5076450, 6768600, 10152900, 20305800]

約数ペア:

[(1, 20305800), (2, 10152900), (3, 6768600), (4, 5076450), (5, 4061160), (6, 3384300), (8, 2538225), (9, 2256200), (10, 2030580), (12, 1692150), (15, 1353720), (18, 1128100), (20, 1015290), (24, 846075), (25, 812232), (29, 700200), (30, 676860), (36, 564050), (40, 507645), (45, 451240), (50, 406116), (58, 350100), (60, 338430), (72, 282025), (75, 270744), (87, 233400), (90, 225620), (100, 203058), (116, 175050), (120, 169215), (145, 140040), (150, 135372), (174, 116700), (180, 112810), (200, 101529), (225, 90248), (232, 87525), (261, 77800), (290, 70020), (300, 67686), (348, 58350), (360, 56405), (389, 52200), (435, 46680), (450, 45124), (522, 38900), (580, 35010), (600, 33843), (696, 29175), (725, 28008), (778, 26100), (870, 23340), (900, 22562), (1044, 19450), (1160, 17505), (1167, 17400), (1305, 15560), (1450, 14004), (1556, 13050), (1740, 11670), (1800, 11281), (1945, 10440), (2088, 9725), (2175, 9336), (2334, 8700), (2610, 7780), (2900, 7002), (3112, 6525), (3480, 5835), (3501, 5800), (3890, 5220), (4350, 4668)]