1288747880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:547

約数の個数: 128

約数和(自身を含む): 3378240000

約数和(自身を除く): 2089492120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 199, 202, 229, 280, 398, 404, 458, 505, 707, 796, 808, 916, 995, 1010, 1145, 1393, 1414, 1592, 1603, 1832, 1990, 2020, 2290, 2786, 2828, 3206, 3535, 3980, 4040, 4580, 5572, 5656, 6412, 6965, 7070, 7960, 8015, 9160, 11144, 12824, 13930, 14140, 16030, 20099, 23129, 27860, 28280, 32060, 40198, 45571, 46258, 55720, 64120, 80396, 91142, 92516, 100495, 115645, 140693, 160792, 161903, 182284, 185032, 200990, 227855, 231290, 281386, 318997, 323806, 364568, 401980, 455710, 462580, 562772, 637994, 647612, 703465, 803960, 809515, 911420, 925160, 1125544, 1275988, 1295224, 1406930, 1594985, 1619030, 1822840, 2551976, 2813860, 3189970, 3238060, 4602671, 5627720, 6379940, 6476120, 9205342, 12759880, 18410684, 23013355, 32218697, 36821368, 46026710, 64437394, 92053420, 128874788, 161093485, 184106840, 257749576, 322186970, 644373940, 1288747880]

約数ペア:

[(1, 1288747880), (2, 644373940), (4, 322186970), (5, 257749576), (7, 184106840), (8, 161093485), (10, 128874788), (14, 92053420), (20, 64437394), (28, 46026710), (35, 36821368), (40, 32218697), (56, 23013355), (70, 18410684), (101, 12759880), (140, 9205342), (199, 6476120), (202, 6379940), (229, 5627720), (280, 4602671), (398, 3238060), (404, 3189970), (458, 2813860), (505, 2551976), (707, 1822840), (796, 1619030), (808, 1594985), (916, 1406930), (995, 1295224), (1010, 1275988), (1145, 1125544), (1393, 925160), (1414, 911420), (1592, 809515), (1603, 803960), (1832, 703465), (1990, 647612), (2020, 637994), (2290, 562772), (2786, 462580), (2828, 455710), (3206, 401980), (3535, 364568), (3980, 323806), (4040, 318997), (4580, 281386), (5572, 231290), (5656, 227855), (6412, 200990), (6965, 185032), (7070, 182284), (7960, 161903), (8015, 160792), (9160, 140693), (11144, 115645), (12824, 100495), (13930, 92516), (14140, 91142), (16030, 80396), (20099, 64120), (23129, 55720), (27860, 46258), (28280, 45571), (32060, 40198)]