720879880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:671

約数の個数: 128

約数和(自身を含む): 1920672000

約数和(自身を除く): 1199792120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 149, 185, 259, 280, 296, 298, 370, 467, 518, 596, 740, 745, 934, 1036, 1043, 1192, 1295, 1480, 1490, 1868, 2072, 2086, 2335, 2590, 2980, 3269, 3736, 4172, 4670, 5180, 5215, 5513, 5960, 6538, 8344, 9340, 10360, 10430, 11026, 13076, 16345, 17279, 18680, 20860, 22052, 26152, 27565, 32690, 34558, 38591, 41720, 44104, 55130, 65380, 69116, 69583, 77182, 86395, 110260, 120953, 130760, 138232, 139166, 154364, 172790, 192955, 220520, 241906, 278332, 308728, 345580, 347915, 385910, 483812, 487081, 556664, 604765, 691160, 695830, 771820, 967624, 974162, 1209530, 1391660, 1543640, 1948324, 2419060, 2435405, 2574571, 2783320, 3896648, 4838120, 4870810, 5149142, 9741620, 10298284, 12872855, 18021997, 19483240, 20596568, 25745710, 36043994, 51491420, 72087988, 90109985, 102982840, 144175976, 180219970, 360439940, 720879880]

約数ペア:

[(1, 720879880), (2, 360439940), (4, 180219970), (5, 144175976), (7, 102982840), (8, 90109985), (10, 72087988), (14, 51491420), (20, 36043994), (28, 25745710), (35, 20596568), (37, 19483240), (40, 18021997), (56, 12872855), (70, 10298284), (74, 9741620), (140, 5149142), (148, 4870810), (149, 4838120), (185, 3896648), (259, 2783320), (280, 2574571), (296, 2435405), (298, 2419060), (370, 1948324), (467, 1543640), (518, 1391660), (596, 1209530), (740, 974162), (745, 967624), (934, 771820), (1036, 695830), (1043, 691160), (1192, 604765), (1295, 556664), (1480, 487081), (1490, 483812), (1868, 385910), (2072, 347915), (2086, 345580), (2335, 308728), (2590, 278332), (2980, 241906), (3269, 220520), (3736, 192955), (4172, 172790), (4670, 154364), (5180, 139166), (5215, 138232), (5513, 130760), (5960, 120953), (6538, 110260), (8344, 86395), (9340, 77182), (10360, 69583), (10430, 69116), (11026, 65380), (13076, 55130), (16345, 44104), (17279, 41720), (18680, 38591), (20860, 34558), (22052, 32690), (26152, 27565)]