1878200720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:646

約数の個数: 160

約数和(自身を含む): 4966824960

約数和(自身を除く): 3088624240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 121, 124, 155, 176, 220, 242, 248, 310, 341, 440, 484, 496, 569, 605, 620, 682, 880, 968, 1138, 1210, 1240, 1331, 1364, 1705, 1936, 2276, 2420, 2480, 2662, 2728, 2845, 3410, 3751, 4552, 4840, 5324, 5456, 5690, 6259, 6655, 6820, 7502, 9104, 9680, 10648, 11380, 12518, 13310, 13640, 15004, 17639, 18755, 21296, 22760, 25036, 26620, 27280, 30008, 31295, 35278, 37510, 41261, 45520, 50072, 53240, 60016, 62590, 68849, 70556, 75020, 82522, 88195, 100144, 106480, 125180, 137698, 141112, 150040, 165044, 176390, 194029, 206305, 250360, 275396, 282224, 300080, 330088, 344245, 352780, 388058, 412610, 500720, 550792, 660176, 688490, 705560, 757339, 776116, 825220, 970145, 1101584, 1376980, 1411120, 1514678, 1552232, 1650440, 1940290, 2134319, 2753960, 3029356, 3104464, 3300880, 3786695, 3880580, 4268638, 5507920, 6058712, 7573390, 7761160, 8537276, 10671595, 12117424, 15146780, 15522320, 17074552, 21343190, 23477509, 30293560, 34149104, 42686380, 46955018, 60587120, 85372760, 93910036, 117387545, 170745520, 187820072, 234775090, 375640144, 469550180, 939100360, 1878200720]

約数ペア:

[(1, 1878200720), (2, 939100360), (4, 469550180), (5, 375640144), (8, 234775090), (10, 187820072), (11, 170745520), (16, 117387545), (20, 93910036), (22, 85372760), (31, 60587120), (40, 46955018), (44, 42686380), (55, 34149104), (62, 30293560), (80, 23477509), (88, 21343190), (110, 17074552), (121, 15522320), (124, 15146780), (155, 12117424), (176, 10671595), (220, 8537276), (242, 7761160), (248, 7573390), (310, 6058712), (341, 5507920), (440, 4268638), (484, 3880580), (496, 3786695), (569, 3300880), (605, 3104464), (620, 3029356), (682, 2753960), (880, 2134319), (968, 1940290), (1138, 1650440), (1210, 1552232), (1240, 1514678), (1331, 1411120), (1364, 1376980), (1705, 1101584), (1936, 970145), (2276, 825220), (2420, 776116), (2480, 757339), (2662, 705560), (2728, 688490), (2845, 660176), (3410, 550792), (3751, 500720), (4552, 412610), (4840, 388058), (5324, 352780), (5456, 344245), (5690, 330088), (6259, 300080), (6655, 282224), (6820, 275396), (7502, 250360), (9104, 206305), (9680, 194029), (10648, 176390), (11380, 165044), (12518, 150040), (13310, 141112), (13640, 137698), (15004, 125180), (17639, 106480), (18755, 100144), (21296, 88195), (22760, 82522), (25036, 75020), (26620, 70556), (27280, 68849), (30008, 62590), (31295, 60016), (35278, 53240), (37510, 50072), (41261, 45520)]