840561280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3259}}^1$

素因数の和:3322

約数の個数: 128

約数和(自身を含む): 2234534400

約数和(自身を除く): 1393973120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1040, 1240, 1612, 1664, 1984, 2015, 2080, 2480, 3224, 3259, 3968, 4030, 4160, 4960, 6448, 6518, 8060, 8320, 9920, 12896, 13036, 16120, 16295, 19840, 25792, 26072, 32240, 32590, 42367, 51584, 52144, 64480, 65180, 84734, 101029, 104288, 128960, 130360, 169468, 202058, 208576, 211835, 257920, 260720, 338936, 404116, 417152, 423670, 505145, 521440, 677872, 808232, 847340, 1010290, 1042880, 1313377, 1355744, 1616464, 1694680, 2020580, 2085760, 2626754, 2711488, 3232928, 3389360, 4041160, 5253508, 5422976, 6465856, 6566885, 6778720, 8082320, 10507016, 12931712, 13133770, 13557440, 16164640, 21014032, 26267540, 27114880, 32329280, 42028064, 52535080, 64658560, 84056128, 105070160, 168112256, 210140320, 420280640, 840561280]

約数ペア:

[(1, 840561280), (2, 420280640), (4, 210140320), (5, 168112256), (8, 105070160), (10, 84056128), (13, 64658560), (16, 52535080), (20, 42028064), (26, 32329280), (31, 27114880), (32, 26267540), (40, 21014032), (52, 16164640), (62, 13557440), (64, 13133770), (65, 12931712), (80, 10507016), (104, 8082320), (124, 6778720), (128, 6566885), (130, 6465856), (155, 5422976), (160, 5253508), (208, 4041160), (248, 3389360), (260, 3232928), (310, 2711488), (320, 2626754), (403, 2085760), (416, 2020580), (496, 1694680), (520, 1616464), (620, 1355744), (640, 1313377), (806, 1042880), (832, 1010290), (992, 847340), (1040, 808232), (1240, 677872), (1612, 521440), (1664, 505145), (1984, 423670), (2015, 417152), (2080, 404116), (2480, 338936), (3224, 260720), (3259, 257920), (3968, 211835), (4030, 208576), (4160, 202058), (4960, 169468), (6448, 130360), (6518, 128960), (8060, 104288), (8320, 101029), (9920, 84734), (12896, 65180), (13036, 64480), (16120, 52144), (16295, 51584), (19840, 42367), (25792, 32590), (26072, 32240)]