819640640

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4021}}^1$

素因数の和:4065

約数の個数: 168

約数和(自身を含む): 2445681672

約数和(自身を除く): 1626041032

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 320, 364, 392, 416, 448, 455, 490, 520, 560, 637, 728, 784, 832, 910, 980, 1040, 1120, 1274, 1456, 1568, 1820, 1960, 2080, 2240, 2548, 2912, 3136, 3185, 3640, 3920, 4021, 4160, 5096, 5824, 6370, 7280, 7840, 8042, 10192, 12740, 14560, 15680, 16084, 20105, 20384, 25480, 28147, 29120, 32168, 40210, 40768, 50960, 52273, 56294, 64336, 80420, 101920, 104546, 112588, 128672, 140735, 160840, 197029, 203840, 209092, 225176, 257344, 261365, 281470, 321680, 365911, 394058, 418184, 450352, 522730, 562940, 643360, 731822, 788116, 836368, 900704, 985145, 1045460, 1125880, 1286720, 1463644, 1576232, 1672736, 1801408, 1829555, 1970290, 2090920, 2251760, 2561377, 2927288, 3152464, 3345472, 3659110, 3940580, 4181840, 4503520, 5122754, 5854576, 6304928, 7318220, 7881160, 8363680, 9007040, 10245508, 11709152, 12609856, 12806885, 14636440, 15762320, 16727360, 20491016, 23418304, 25613770, 29272880, 31524640, 40982032, 51227540, 58545760, 63049280, 81964064, 102455080, 117091520, 163928128, 204910160, 409820320, 819640640]

約数ペア:

[(1, 819640640), (2, 409820320), (4, 204910160), (5, 163928128), (7, 117091520), (8, 102455080), (10, 81964064), (13, 63049280), (14, 58545760), (16, 51227540), (20, 40982032), (26, 31524640), (28, 29272880), (32, 25613770), (35, 23418304), (40, 20491016), (49, 16727360), (52, 15762320), (56, 14636440), (64, 12806885), (65, 12609856), (70, 11709152), (80, 10245508), (91, 9007040), (98, 8363680), (104, 7881160), (112, 7318220), (130, 6304928), (140, 5854576), (160, 5122754), (182, 4503520), (196, 4181840), (208, 3940580), (224, 3659110), (245, 3345472), (260, 3152464), (280, 2927288), (320, 2561377), (364, 2251760), (392, 2090920), (416, 1970290), (448, 1829555), (455, 1801408), (490, 1672736), (520, 1576232), (560, 1463644), (637, 1286720), (728, 1125880), (784, 1045460), (832, 985145), (910, 900704), (980, 836368), (1040, 788116), (1120, 731822), (1274, 643360), (1456, 562940), (1568, 522730), (1820, 450352), (1960, 418184), (2080, 394058), (2240, 365911), (2548, 321680), (2912, 281470), (3136, 261365), (3185, 257344), (3640, 225176), (3920, 209092), (4021, 203840), (4160, 197029), (5096, 160840), (5824, 140735), (6370, 128672), (7280, 112588), (7840, 104546), (8042, 101920), (10192, 80420), (12740, 64336), (14560, 56294), (15680, 52273), (16084, 50960), (20105, 40768), (20384, 40210), (25480, 32168), (28147, 29120)]