279781320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25621}}^1$

素因数の和:25655

約数の個数: 128

約数和(自身を含む): 1033079040

約数和(自身を除く): 753297720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 25621, 51242, 76863, 102484, 128105, 153726, 179347, 204968, 256210, 307452, 333073, 358694, 384315, 512420, 538041, 614904, 666146, 717388, 768630, 896735, 999219, 1024840, 1076082, 1332292, 1434776, 1537260, 1665365, 1793470, 1998438, 2152164, 2331511, 2664584, 2690205, 3074520, 3330730, 3586940, 3996876, 4304328, 4663022, 4996095, 5380410, 6661460, 6994533, 7173880, 7993752, 9326044, 9992190, 10760820, 11657555, 13322920, 13989066, 18652088, 19984380, 21521640, 23315110, 27978132, 34972665, 39968760, 46630220, 55956264, 69945330, 93260440, 139890660, 279781320]

約数ペア:

[(1, 279781320), (2, 139890660), (3, 93260440), (4, 69945330), (5, 55956264), (6, 46630220), (7, 39968760), (8, 34972665), (10, 27978132), (12, 23315110), (13, 21521640), (14, 19984380), (15, 18652088), (20, 13989066), (21, 13322920), (24, 11657555), (26, 10760820), (28, 9992190), (30, 9326044), (35, 7993752), (39, 7173880), (40, 6994533), (42, 6661460), (52, 5380410), (56, 4996095), (60, 4663022), (65, 4304328), (70, 3996876), (78, 3586940), (84, 3330730), (91, 3074520), (104, 2690205), (105, 2664584), (120, 2331511), (130, 2152164), (140, 1998438), (156, 1793470), (168, 1665365), (182, 1537260), (195, 1434776), (210, 1332292), (260, 1076082), (273, 1024840), (280, 999219), (312, 896735), (364, 768630), (390, 717388), (420, 666146), (455, 614904), (520, 538041), (546, 512420), (728, 384315), (780, 358694), (840, 333073), (910, 307452), (1092, 256210), (1365, 204968), (1560, 179347), (1820, 153726), (2184, 128105), (2730, 102484), (3640, 76863), (5460, 51242), (10920, 25621)]