20572650

素因数分解:

$2^1\times 3^3\times 5^2\times 7^2\times {\mathrm{311}}^1$

素因数の和:346

約数の個数: 144

約数和(自身を含む): 66156480

約数和(自身を除く): 45583830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 49, 50, 54, 63, 70, 75, 90, 98, 105, 126, 135, 147, 150, 175, 189, 210, 225, 245, 270, 294, 311, 315, 350, 378, 441, 450, 490, 525, 622, 630, 675, 735, 882, 933, 945, 1050, 1225, 1323, 1350, 1470, 1555, 1575, 1866, 1890, 2177, 2205, 2450, 2646, 2799, 3110, 3150, 3675, 4354, 4410, 4665, 4725, 5598, 6531, 6615, 7350, 7775, 8397, 9330, 9450, 10885, 11025, 13062, 13230, 13995, 15239, 15550, 16794, 19593, 21770, 22050, 23325, 27990, 30478, 32655, 33075, 39186, 41985, 45717, 46650, 54425, 58779, 65310, 66150, 69975, 76195, 83970, 91434, 97965, 108850, 117558, 137151, 139950, 152390, 163275, 195930, 209925, 228585, 274302, 293895, 326550, 380975, 411453, 419850, 457170, 489825, 587790, 685755, 761950, 822906, 979650, 1142925, 1371510, 1469475, 2057265, 2285850, 2938950, 3428775, 4114530, 6857550, 10286325, 20572650]

約数ペア:

[(1, 20572650), (2, 10286325), (3, 6857550), (5, 4114530), (6, 3428775), (7, 2938950), (9, 2285850), (10, 2057265), (14, 1469475), (15, 1371510), (18, 1142925), (21, 979650), (25, 822906), (27, 761950), (30, 685755), (35, 587790), (42, 489825), (45, 457170), (49, 419850), (50, 411453), (54, 380975), (63, 326550), (70, 293895), (75, 274302), (90, 228585), (98, 209925), (105, 195930), (126, 163275), (135, 152390), (147, 139950), (150, 137151), (175, 117558), (189, 108850), (210, 97965), (225, 91434), (245, 83970), (270, 76195), (294, 69975), (311, 66150), (315, 65310), (350, 58779), (378, 54425), (441, 46650), (450, 45717), (490, 41985), (525, 39186), (622, 33075), (630, 32655), (675, 30478), (735, 27990), (882, 23325), (933, 22050), (945, 21770), (1050, 19593), (1225, 16794), (1323, 15550), (1350, 15239), (1470, 13995), (1555, 13230), (1575, 13062), (1866, 11025), (1890, 10885), (2177, 9450), (2205, 9330), (2450, 8397), (2646, 7775), (2799, 7350), (3110, 6615), (3150, 6531), (3675, 5598), (4354, 4725), (4410, 4665)]