212688520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{503}}^1$

素因数の和:587

約数の個数: 96

約数和(自身を含む): 540509760

約数和(自身を除く): 327821240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 503, 620, 682, 961, 1006, 1240, 1364, 1705, 1922, 2012, 2515, 2728, 3410, 3844, 4024, 4805, 5030, 5533, 6820, 7688, 9610, 10060, 10571, 11066, 13640, 15593, 19220, 20120, 21142, 22132, 27665, 31186, 38440, 42284, 44264, 52855, 55330, 62372, 77965, 84568, 105710, 110660, 124744, 155930, 171523, 211420, 221320, 311860, 343046, 422840, 483383, 623720, 686092, 857615, 966766, 1372184, 1715230, 1933532, 2416915, 3430460, 3867064, 4833830, 5317213, 6860920, 9667660, 10634426, 19335320, 21268852, 26586065, 42537704, 53172130, 106344260, 212688520]

約数ペア:

[(1, 212688520), (2, 106344260), (4, 53172130), (5, 42537704), (8, 26586065), (10, 21268852), (11, 19335320), (20, 10634426), (22, 9667660), (31, 6860920), (40, 5317213), (44, 4833830), (55, 3867064), (62, 3430460), (88, 2416915), (110, 1933532), (124, 1715230), (155, 1372184), (220, 966766), (248, 857615), (310, 686092), (341, 623720), (440, 483383), (503, 422840), (620, 343046), (682, 311860), (961, 221320), (1006, 211420), (1240, 171523), (1364, 155930), (1705, 124744), (1922, 110660), (2012, 105710), (2515, 84568), (2728, 77965), (3410, 62372), (3844, 55330), (4024, 52855), (4805, 44264), (5030, 42284), (5533, 38440), (6820, 31186), (7688, 27665), (9610, 22132), (10060, 21142), (10571, 20120), (11066, 19220), (13640, 15593)]