1640390080

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{38543}}^1$

素因数の和:38586

約数の個数: 112

約数和(自身を含む): 4699284480

約数和(自身を除く): 3058894400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 532, 560, 608, 665, 760, 1064, 1120, 1216, 1330, 1520, 2128, 2240, 2660, 3040, 4256, 5320, 6080, 8512, 10640, 21280, 38543, 42560, 77086, 154172, 192715, 269801, 308344, 385430, 539602, 616688, 732317, 770860, 1079204, 1233376, 1349005, 1464634, 1541720, 2158408, 2466752, 2698010, 2929268, 3083440, 3661585, 4316816, 5126219, 5396020, 5858536, 6166880, 7323170, 8633632, 10252438, 10792040, 11717072, 12333760, 14646340, 17267264, 20504876, 21584080, 23434144, 25631095, 29292680, 41009752, 43168160, 46868288, 51262190, 58585360, 82019504, 86336320, 102524380, 117170720, 164039008, 205048760, 234341440, 328078016, 410097520, 820195040, 1640390080]

約数ペア:

[(1, 1640390080), (2, 820195040), (4, 410097520), (5, 328078016), (7, 234341440), (8, 205048760), (10, 164039008), (14, 117170720), (16, 102524380), (19, 86336320), (20, 82019504), (28, 58585360), (32, 51262190), (35, 46868288), (38, 43168160), (40, 41009752), (56, 29292680), (64, 25631095), (70, 23434144), (76, 21584080), (80, 20504876), (95, 17267264), (112, 14646340), (133, 12333760), (140, 11717072), (152, 10792040), (160, 10252438), (190, 8633632), (224, 7323170), (266, 6166880), (280, 5858536), (304, 5396020), (320, 5126219), (380, 4316816), (448, 3661585), (532, 3083440), (560, 2929268), (608, 2698010), (665, 2466752), (760, 2158408), (1064, 1541720), (1120, 1464634), (1216, 1349005), (1330, 1233376), (1520, 1079204), (2128, 770860), (2240, 732317), (2660, 616688), (3040, 539602), (4256, 385430), (5320, 308344), (6080, 269801), (8512, 192715), (10640, 154172), (21280, 77086), (38543, 42560)]