1020346040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:865

約数の個数: 128

約数和(自身を含む): 2716848000

約数和(自身を除く): 1696501960

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, 518, 596, 661, 740, 745, 1036, 1043, 1192, 1295, 1322, 1480, 1490, 2072, 2086, 2590, 2644, 2980, 3305, 4172, 4627, 5180, 5215, 5288, 5513, 5960, 6610, 8344, 9254, 10360, 10430, 11026, 13220, 18508, 20860, 22052, 23135, 24457, 26440, 27565, 37016, 38591, 41720, 44104, 46270, 48914, 55130, 77182, 92540, 97828, 98489, 110260, 122285, 154364, 171199, 185080, 192955, 195656, 196978, 220520, 244570, 308728, 342398, 385910, 393956, 489140, 492445, 684796, 689423, 771820, 787912, 855995, 978280, 984890, 1369592, 1378846, 1543640, 1711990, 1969780, 2757692, 3423980, 3447115, 3644093, 3939560, 5515384, 6847960, 6894230, 7288186, 13788460, 14576372, 18220465, 25508651, 27576920, 29152744, 36440930, 51017302, 72881860, 102034604, 127543255, 145763720, 204069208, 255086510, 510173020, 1020346040]

約数ペア:

[(1, 1020346040), (2, 510173020), (4, 255086510), (5, 204069208), (7, 145763720), (8, 127543255), (10, 102034604), (14, 72881860), (20, 51017302), (28, 36440930), (35, 29152744), (37, 27576920), (40, 25508651), (56, 18220465), (70, 14576372), (74, 13788460), (140, 7288186), (148, 6894230), (149, 6847960), (185, 5515384), (259, 3939560), (280, 3644093), (296, 3447115), (298, 3423980), (370, 2757692), (518, 1969780), (596, 1711990), (661, 1543640), (740, 1378846), (745, 1369592), (1036, 984890), (1043, 978280), (1192, 855995), (1295, 787912), (1322, 771820), (1480, 689423), (1490, 684796), (2072, 492445), (2086, 489140), (2590, 393956), (2644, 385910), (2980, 342398), (3305, 308728), (4172, 244570), (4627, 220520), (5180, 196978), (5215, 195656), (5288, 192955), (5513, 185080), (5960, 171199), (6610, 154364), (8344, 122285), (9254, 110260), (10360, 98489), (10430, 97828), (11026, 92540), (13220, 77182), (18508, 55130), (20860, 48914), (22052, 46270), (23135, 44104), (24457, 41720), (26440, 38591), (27565, 37016)]