208782840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1249}}^1$

素因数の和:1469

約数の個数: 128

約数和(自身を含む): 720000000

約数和(自身を除く): 511217160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 199, 210, 280, 398, 420, 597, 796, 840, 995, 1194, 1249, 1393, 1592, 1990, 2388, 2498, 2786, 2985, 3747, 3980, 4179, 4776, 4996, 5572, 5970, 6245, 6965, 7494, 7960, 8358, 8743, 9992, 11144, 11940, 12490, 13930, 14988, 16716, 17486, 18735, 20895, 23880, 24980, 26229, 27860, 29976, 33432, 34972, 37470, 41790, 43715, 49960, 52458, 55720, 69944, 74940, 83580, 87430, 104916, 131145, 149880, 167160, 174860, 209832, 248551, 262290, 349720, 497102, 524580, 745653, 994204, 1049160, 1242755, 1491306, 1739857, 1988408, 2485510, 2982612, 3479714, 3728265, 4971020, 5219571, 5965224, 6959428, 7456530, 8699285, 9942040, 10439142, 13918856, 14913060, 17398570, 20878284, 26097855, 29826120, 34797140, 41756568, 52195710, 69594280, 104391420, 208782840]

約数ペア:

[(1, 208782840), (2, 104391420), (3, 69594280), (4, 52195710), (5, 41756568), (6, 34797140), (7, 29826120), (8, 26097855), (10, 20878284), (12, 17398570), (14, 14913060), (15, 13918856), (20, 10439142), (21, 9942040), (24, 8699285), (28, 7456530), (30, 6959428), (35, 5965224), (40, 5219571), (42, 4971020), (56, 3728265), (60, 3479714), (70, 2982612), (84, 2485510), (105, 1988408), (120, 1739857), (140, 1491306), (168, 1242755), (199, 1049160), (210, 994204), (280, 745653), (398, 524580), (420, 497102), (597, 349720), (796, 262290), (840, 248551), (995, 209832), (1194, 174860), (1249, 167160), (1393, 149880), (1592, 131145), (1990, 104916), (2388, 87430), (2498, 83580), (2786, 74940), (2985, 69944), (3747, 55720), (3980, 52458), (4179, 49960), (4776, 43715), (4996, 41790), (5572, 37470), (5970, 34972), (6245, 33432), (6965, 29976), (7494, 27860), (7960, 26229), (8358, 24980), (8743, 23880), (9992, 20895), (11144, 18735), (11940, 17486), (12490, 16716), (13930, 14988)]