987496720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1783}}^1$

素因数の和:1869

約数の個数: 160

約数和(自身を含む): 2803249152

約数和(自身を除く): 1815752432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 43, 46, 56, 70, 80, 86, 92, 112, 115, 140, 161, 172, 184, 215, 230, 280, 301, 322, 344, 368, 430, 460, 560, 602, 644, 688, 805, 860, 920, 989, 1204, 1288, 1505, 1610, 1720, 1783, 1840, 1978, 2408, 2576, 3010, 3220, 3440, 3566, 3956, 4816, 4945, 6020, 6440, 6923, 7132, 7912, 8915, 9890, 12040, 12481, 12880, 13846, 14264, 15824, 17830, 19780, 24080, 24962, 27692, 28528, 34615, 35660, 39560, 41009, 49924, 55384, 62405, 69230, 71320, 76669, 79120, 82018, 99848, 110768, 124810, 138460, 142640, 153338, 164036, 199696, 205045, 249620, 276920, 287063, 306676, 328072, 383345, 410090, 499240, 536683, 553840, 574126, 613352, 656144, 766690, 820180, 998480, 1073366, 1148252, 1226704, 1435315, 1533380, 1640360, 1763387, 2146732, 2296504, 2683415, 2870630, 3066760, 3280720, 3526774, 4293464, 4593008, 5366830, 5741260, 6133520, 7053548, 8586928, 8816935, 10733660, 11482520, 12343709, 14107096, 17633870, 21467320, 22965040, 24687418, 28214192, 35267740, 42934640, 49374836, 61718545, 70535480, 98749672, 123437090, 141070960, 197499344, 246874180, 493748360, 987496720]

約数ペア:

[(1, 987496720), (2, 493748360), (4, 246874180), (5, 197499344), (7, 141070960), (8, 123437090), (10, 98749672), (14, 70535480), (16, 61718545), (20, 49374836), (23, 42934640), (28, 35267740), (35, 28214192), (40, 24687418), (43, 22965040), (46, 21467320), (56, 17633870), (70, 14107096), (80, 12343709), (86, 11482520), (92, 10733660), (112, 8816935), (115, 8586928), (140, 7053548), (161, 6133520), (172, 5741260), (184, 5366830), (215, 4593008), (230, 4293464), (280, 3526774), (301, 3280720), (322, 3066760), (344, 2870630), (368, 2683415), (430, 2296504), (460, 2146732), (560, 1763387), (602, 1640360), (644, 1533380), (688, 1435315), (805, 1226704), (860, 1148252), (920, 1073366), (989, 998480), (1204, 820180), (1288, 766690), (1505, 656144), (1610, 613352), (1720, 574126), (1783, 553840), (1840, 536683), (1978, 499240), (2408, 410090), (2576, 383345), (3010, 328072), (3220, 306676), (3440, 287063), (3566, 276920), (3956, 249620), (4816, 205045), (4945, 199696), (6020, 164036), (6440, 153338), (6923, 142640), (7132, 138460), (7912, 124810), (8915, 110768), (9890, 99848), (12040, 82018), (12481, 79120), (12880, 76669), (13846, 71320), (14264, 69230), (15824, 62405), (17830, 55384), (19780, 49924), (24080, 41009), (24962, 39560), (27692, 35660), (28528, 34615)]