210506520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1913}}^1$

素因数の和:2065

約数の個数: 128

約数和(自身を含む): 727626240

約数和(自身を除く): 517119720

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, 131, 140, 168, 210, 262, 280, 393, 420, 524, 655, 786, 840, 917, 1048, 1310, 1572, 1834, 1913, 1965, 2620, 2751, 3144, 3668, 3826, 3930, 4585, 5240, 5502, 5739, 7336, 7652, 7860, 9170, 9565, 11004, 11478, 13391, 13755, 15304, 15720, 18340, 19130, 22008, 22956, 26782, 27510, 28695, 36680, 38260, 40173, 45912, 53564, 55020, 57390, 66955, 76520, 80346, 107128, 110040, 114780, 133910, 160692, 200865, 229560, 250603, 267820, 321384, 401730, 501206, 535640, 751809, 803460, 1002412, 1253015, 1503618, 1606920, 1754221, 2004824, 2506030, 3007236, 3508442, 3759045, 5012060, 5262663, 6014472, 7016884, 7518090, 8771105, 10024120, 10525326, 14033768, 15036180, 17542210, 21050652, 26313315, 30072360, 35084420, 42101304, 52626630, 70168840, 105253260, 210506520]

約数ペア:

[(1, 210506520), (2, 105253260), (3, 70168840), (4, 52626630), (5, 42101304), (6, 35084420), (7, 30072360), (8, 26313315), (10, 21050652), (12, 17542210), (14, 15036180), (15, 14033768), (20, 10525326), (21, 10024120), (24, 8771105), (28, 7518090), (30, 7016884), (35, 6014472), (40, 5262663), (42, 5012060), (56, 3759045), (60, 3508442), (70, 3007236), (84, 2506030), (105, 2004824), (120, 1754221), (131, 1606920), (140, 1503618), (168, 1253015), (210, 1002412), (262, 803460), (280, 751809), (393, 535640), (420, 501206), (524, 401730), (655, 321384), (786, 267820), (840, 250603), (917, 229560), (1048, 200865), (1310, 160692), (1572, 133910), (1834, 114780), (1913, 110040), (1965, 107128), (2620, 80346), (2751, 76520), (3144, 66955), (3668, 57390), (3826, 55020), (3930, 53564), (4585, 45912), (5240, 40173), (5502, 38260), (5739, 36680), (7336, 28695), (7652, 27510), (7860, 26782), (9170, 22956), (9565, 22008), (11004, 19130), (11478, 18340), (13391, 15720), (13755, 15304)]