890221360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:443

約数の個数: 160

約数和(自身を含む): 2442700800

約数和(自身を除く): 1552479440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 149, 188, 227, 235, 280, 298, 329, 376, 454, 470, 560, 596, 658, 745, 752, 908, 940, 1043, 1135, 1192, 1316, 1490, 1589, 1645, 1816, 1880, 2086, 2270, 2384, 2632, 2980, 3178, 3290, 3632, 3760, 4172, 4540, 5215, 5264, 5960, 6356, 6580, 7003, 7945, 8344, 9080, 10430, 10669, 11920, 12712, 13160, 14006, 15890, 16688, 18160, 20860, 21338, 25424, 26320, 28012, 31780, 33823, 35015, 41720, 42676, 49021, 53345, 56024, 63560, 67646, 70030, 74683, 83440, 85352, 98042, 106690, 112048, 127120, 135292, 140060, 149366, 169115, 170704, 196084, 213380, 236761, 245105, 270584, 280120, 298732, 338230, 373415, 392168, 426760, 473522, 490210, 541168, 560240, 597464, 676460, 746830, 784336, 853520, 947044, 980420, 1183805, 1194928, 1352920, 1493660, 1589681, 1894088, 1960840, 2367610, 2705840, 2987320, 3179362, 3788176, 3921680, 4735220, 5974640, 6358724, 7948405, 9470440, 11127767, 12717448, 15896810, 18940880, 22255534, 25434896, 31793620, 44511068, 55638835, 63587240, 89022136, 111277670, 127174480, 178044272, 222555340, 445110680, 890221360]

約数ペア:

[(1, 890221360), (2, 445110680), (4, 222555340), (5, 178044272), (7, 127174480), (8, 111277670), (10, 89022136), (14, 63587240), (16, 55638835), (20, 44511068), (28, 31793620), (35, 25434896), (40, 22255534), (47, 18940880), (56, 15896810), (70, 12717448), (80, 11127767), (94, 9470440), (112, 7948405), (140, 6358724), (149, 5974640), (188, 4735220), (227, 3921680), (235, 3788176), (280, 3179362), (298, 2987320), (329, 2705840), (376, 2367610), (454, 1960840), (470, 1894088), (560, 1589681), (596, 1493660), (658, 1352920), (745, 1194928), (752, 1183805), (908, 980420), (940, 947044), (1043, 853520), (1135, 784336), (1192, 746830), (1316, 676460), (1490, 597464), (1589, 560240), (1645, 541168), (1816, 490210), (1880, 473522), (2086, 426760), (2270, 392168), (2384, 373415), (2632, 338230), (2980, 298732), (3178, 280120), (3290, 270584), (3632, 245105), (3760, 236761), (4172, 213380), (4540, 196084), (5215, 170704), (5264, 169115), (5960, 149366), (6356, 140060), (6580, 135292), (7003, 127120), (7945, 112048), (8344, 106690), (9080, 98042), (10430, 85352), (10669, 83440), (11920, 74683), (12712, 70030), (13160, 67646), (14006, 63560), (15890, 56024), (16688, 53345), (18160, 49021), (20860, 42676), (21338, 41720), (25424, 35015), (26320, 33823), (28012, 31780)]