20626020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:234

約数の個数: 144

約数和(自身を含む): 68053440

約数和(自身を除く): 47427420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 37, 38, 45, 57, 60, 74, 76, 90, 95, 111, 114, 148, 163, 171, 180, 185, 190, 222, 228, 285, 326, 333, 342, 370, 380, 444, 489, 555, 570, 652, 666, 684, 703, 740, 815, 855, 978, 1110, 1140, 1332, 1406, 1467, 1630, 1665, 1710, 1956, 2109, 2220, 2445, 2812, 2934, 3097, 3260, 3330, 3420, 3515, 4218, 4890, 5868, 6031, 6194, 6327, 6660, 7030, 7335, 8436, 9291, 9780, 10545, 12062, 12388, 12654, 14060, 14670, 15485, 18093, 18582, 21090, 24124, 25308, 27873, 29340, 30155, 30970, 31635, 36186, 37164, 42180, 46455, 54279, 55746, 60310, 61940, 63270, 72372, 90465, 92910, 108558, 111492, 114589, 120620, 126540, 139365, 180930, 185820, 217116, 229178, 271395, 278730, 343767, 361860, 458356, 542790, 557460, 572945, 687534, 1031301, 1085580, 1145890, 1375068, 1718835, 2062602, 2291780, 3437670, 4125204, 5156505, 6875340, 10313010, 20626020]

約数ペア:

[(1, 20626020), (2, 10313010), (3, 6875340), (4, 5156505), (5, 4125204), (6, 3437670), (9, 2291780), (10, 2062602), (12, 1718835), (15, 1375068), (18, 1145890), (19, 1085580), (20, 1031301), (30, 687534), (36, 572945), (37, 557460), (38, 542790), (45, 458356), (57, 361860), (60, 343767), (74, 278730), (76, 271395), (90, 229178), (95, 217116), (111, 185820), (114, 180930), (148, 139365), (163, 126540), (171, 120620), (180, 114589), (185, 111492), (190, 108558), (222, 92910), (228, 90465), (285, 72372), (326, 63270), (333, 61940), (342, 60310), (370, 55746), (380, 54279), (444, 46455), (489, 42180), (555, 37164), (570, 36186), (652, 31635), (666, 30970), (684, 30155), (703, 29340), (740, 27873), (815, 25308), (855, 24124), (978, 21090), (1110, 18582), (1140, 18093), (1332, 15485), (1406, 14670), (1467, 14060), (1630, 12654), (1665, 12388), (1710, 12062), (1956, 10545), (2109, 9780), (2220, 9291), (2445, 8436), (2812, 7335), (2934, 7030), (3097, 6660), (3260, 6327), (3330, 6194), (3420, 6031), (3515, 5868), (4218, 4890)]