280724080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{38561}}^1$

素因数の和:38594

約数の個数: 80

約数和(自身を含む): 803323584

約数和(自身を除く): 522599504

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 38561, 77122, 154244, 192805, 269927, 308488, 385610, 501293, 539854, 616976, 771220, 1002586, 1079708, 1349635, 1542440, 2005172, 2159416, 2506465, 2699270, 3084880, 3509051, 4010344, 4318832, 5012930, 5398540, 7018102, 8020688, 10025860, 10797080, 14036204, 17545255, 20051720, 21594160, 28072408, 35090510, 40103440, 56144816, 70181020, 140362040, 280724080]

約数ペア:

[(1, 280724080), (2, 140362040), (4, 70181020), (5, 56144816), (7, 40103440), (8, 35090510), (10, 28072408), (13, 21594160), (14, 20051720), (16, 17545255), (20, 14036204), (26, 10797080), (28, 10025860), (35, 8020688), (40, 7018102), (52, 5398540), (56, 5012930), (65, 4318832), (70, 4010344), (80, 3509051), (91, 3084880), (104, 2699270), (112, 2506465), (130, 2159416), (140, 2005172), (182, 1542440), (208, 1349635), (260, 1079708), (280, 1002586), (364, 771220), (455, 616976), (520, 539854), (560, 501293), (728, 385610), (910, 308488), (1040, 269927), (1456, 192805), (1820, 154244), (3640, 77122), (7280, 38561)]